[{"doi":"10.1007/s10971-024-06607-2","publisher":"Springer Nature","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","page":"356-373","year":"2025","title":"Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles","isi":1,"quality_controlled":"1","publication_status":"published","article_type":"original","_id":"18558","month":"02","status":"public","author":[{"last_name":"Verma","full_name":"Verma, Madhu","first_name":"Madhu"},{"first_name":"Ajay","full_name":"Kumar, Ajay","last_name":"Kumar"},{"first_name":"Vijay Kumar","full_name":"Thakur, Vijay Kumar","last_name":"Thakur"},{"last_name":"Maurya","full_name":"Maurya, Akanksha","first_name":"Akanksha"},{"last_name":"Kumar","first_name":"Sachin","full_name":"Kumar, Sachin"},{"orcid":"0000-0003-2209-5269","last_name":"Singh","first_name":"Saurabh","full_name":"Singh, Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a"},{"full_name":"Srivastav, Simant Kumar","first_name":"Simant Kumar","last_name":"Srivastav"}],"oa_version":"None","scopus_import":"1","publication_identifier":{"issn":["0928-0707"],"eissn":["1573-4846"]},"acknowledgement":"Simant Kumar Srivastav greatly acknowledges the University Grant Commission (UGC), New Delhi, India for providing BSR start-up grant to carry out this research work.\r\nThis research was supported by start-up grant of the University Grant Commission (UGC), New Delhi, India through project no F-30-500/2019 (BSR).","article_processing_charge":"No","date_created":"2024-11-17T23:01:47Z","abstract":[{"lang":"eng","text":"The current investigation presents a facile and cost-effective sol-gel approach for the synthesis of phase-pure multiferroic bismuth ferrite (BiFeO3) nanoparticles (BFO NPs) by using propylene glycol as a complexing agent, intended for use as a photocatalyst to efficiently degrade organic dyes in aqueous solutions under natural sunlight. Characterization techniques, including thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD), elucidated a plausible reaction pathway for the formation of phase-pure BFO NPs. Rietveld refinement of the XRD data, in conjunction with transmission electron microscopy (TEM) and Raman spectroscopy, confirmed the synthesis of single-phase BFO NPs at 400 °C, displaying a space group of R3c and an average crystallite size of 25 nm. UV–visible diffuse reflectance spectroscopy revealed an absorption cut-off wavelength near 590 nm, corresponding to a band gap of 2.08 eV, indicating the capability of BFO NPs to absorb visible light within the 400–590 nm range. BFO NPs have shown efficient and rapid photocatalytic degradation of methylene blue (MB) in acidic, neutral, and basic pH conditions under natural sunlight. This is attributed to the intrinsic ferroelectric and ferromagnetic ordering present in synthesized BFO NPs which facilitates the separation and migration of photoinduced charges through band bending phenomena at the interface."}],"type":"journal_article","citation":{"mla":"Verma, Madhu, et al. “Efficient and Rapid Sunlight-Driven Photocatalytic Degradation of Methylene Blue Dye Using Multiferroic BiFeO3 Nanoparticles.” <i>Journal of Sol-Gel Science and Technology</i>, vol. 113, Springer Nature, 2025, pp. 356–73, doi:<a href=\"https://doi.org/10.1007/s10971-024-06607-2\">10.1007/s10971-024-06607-2</a>.","ieee":"M. Verma <i>et al.</i>, “Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles,” <i>Journal of Sol-Gel Science and Technology</i>, vol. 113. Springer Nature, pp. 356–373, 2025.","chicago":"Verma, Madhu, Ajay Kumar, Vijay Kumar Thakur, Akanksha Maurya, Sachin Kumar, Saurabh Singh, and Simant Kumar Srivastav. “Efficient and Rapid Sunlight-Driven Photocatalytic Degradation of Methylene Blue Dye Using Multiferroic BiFeO3 Nanoparticles.” <i>Journal of Sol-Gel Science and Technology</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1007/s10971-024-06607-2\">https://doi.org/10.1007/s10971-024-06607-2</a>.","apa":"Verma, M., Kumar, A., Thakur, V. K., Maurya, A., Kumar, S., Singh, S., &#38; Srivastav, S. K. (2025). Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles. <i>Journal of Sol-Gel Science and Technology</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s10971-024-06607-2\">https://doi.org/10.1007/s10971-024-06607-2</a>","ista":"Verma M, Kumar A, Thakur VK, Maurya A, Kumar S, Singh S, Srivastav SK. 2025. Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles. Journal of Sol-Gel Science and Technology. 113, 356–373.","short":"M. Verma, A. Kumar, V.K. Thakur, A. Maurya, S. Kumar, S. Singh, S.K. Srivastav, Journal of Sol-Gel Science and Technology 113 (2025) 356–373.","ama":"Verma M, Kumar A, Thakur VK, et al. Efficient and rapid sunlight-driven photocatalytic degradation of methylene blue dye using multiferroic BiFeO3 nanoparticles. <i>Journal of Sol-Gel Science and Technology</i>. 2025;113:356-373. doi:<a href=\"https://doi.org/10.1007/s10971-024-06607-2\">10.1007/s10971-024-06607-2</a>"},"date_updated":"2025-05-19T14:00:43Z","publication":"Journal of Sol-Gel Science and Technology","OA_type":"closed access","external_id":{"isi":["001348590700001"]},"intvolume":"       113","day":"01","department":[{"_id":"MaIb"}],"language":[{"iso":"eng"}],"volume":113,"date_published":"2025-02-01T00:00:00Z"},{"month":"03","status":"public","author":[{"last_name":"Mahato","full_name":"Mahato, Neelima","first_name":"Neelima"},{"orcid":"0000-0003-2209-5269","full_name":"Singh, Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","first_name":"Saurabh","last_name":"Singh"},{"first_name":"T. V.M.","full_name":"Sreekanth, T. V.M.","last_name":"Sreekanth"},{"first_name":"Kisoo","full_name":"Yoo, Kisoo","last_name":"Yoo"},{"last_name":"Kim","full_name":"Kim, Jonghoon","first_name":"Jonghoon"}],"quality_controlled":"1","publication_status":"published","_id":"18701","article_type":"original","title":"In-situ engineered highly-crystalline Polythiophene empowered electrochemical capacitor-II: Anomalous electrochemical charge storage behavior of Polythiophene-rGO composite","isi":1,"year":"2025","publisher":"Elsevier","doi":"10.1016/j.matlet.2024.137869","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","volume":382,"language":[{"iso":"eng"}],"department":[{"_id":"MaIb"}],"date_published":"2025-03-01T00:00:00Z","external_id":{"isi":["001433664000001"]},"publication":"Materials Letters","OA_type":"closed access","intvolume":"       382","day":"01","article_processing_charge":"No","article_number":"137869","acknowledgement":"This work was partly supported by the Institute of Information & Communications Technology Planning & Evaluation (IITP) grant funded by the Korea government (MSIT) (No.RS-2021-II210077) and Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government (MOTIE)(RS-2024-00398346, ESS BigData-Based O&M and Asset Management Technical Manpower Training).","citation":{"ama":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. In-situ engineered highly-crystalline Polythiophene empowered electrochemical capacitor-II: Anomalous electrochemical charge storage behavior of Polythiophene-rGO composite. <i>Materials Letters</i>. 2025;382. doi:<a href=\"https://doi.org/10.1016/j.matlet.2024.137869\">10.1016/j.matlet.2024.137869</a>","short":"N. Mahato, S. Singh, T.V.M. Sreekanth, K. Yoo, J. Kim, Materials Letters 382 (2025).","ista":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. 2025. In-situ engineered highly-crystalline Polythiophene empowered electrochemical capacitor-II: Anomalous electrochemical charge storage behavior of Polythiophene-rGO composite. Materials Letters. 382, 137869.","chicago":"Mahato, Neelima, Saurabh Singh, T. V.M. Sreekanth, Kisoo Yoo, and Jonghoon Kim. “In-Situ Engineered Highly-Crystalline Polythiophene Empowered Electrochemical Capacitor-II: Anomalous Electrochemical Charge Storage Behavior of Polythiophene-RGO Composite.” <i>Materials Letters</i>. Elsevier, 2025. <a href=\"https://doi.org/10.1016/j.matlet.2024.137869\">https://doi.org/10.1016/j.matlet.2024.137869</a>.","apa":"Mahato, N., Singh, S., Sreekanth, T. V. M., Yoo, K., &#38; Kim, J. (2025). In-situ engineered highly-crystalline Polythiophene empowered electrochemical capacitor-II: Anomalous electrochemical charge storage behavior of Polythiophene-rGO composite. <i>Materials Letters</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.matlet.2024.137869\">https://doi.org/10.1016/j.matlet.2024.137869</a>","mla":"Mahato, Neelima, et al. “In-Situ Engineered Highly-Crystalline Polythiophene Empowered Electrochemical Capacitor-II: Anomalous Electrochemical Charge Storage Behavior of Polythiophene-RGO Composite.” <i>Materials Letters</i>, vol. 382, 137869, Elsevier, 2025, doi:<a href=\"https://doi.org/10.1016/j.matlet.2024.137869\">10.1016/j.matlet.2024.137869</a>.","ieee":"N. Mahato, S. Singh, T. V. M. Sreekanth, K. Yoo, and J. Kim, “In-situ engineered highly-crystalline Polythiophene empowered electrochemical capacitor-II: Anomalous electrochemical charge storage behavior of Polythiophene-rGO composite,” <i>Materials Letters</i>, vol. 382. Elsevier, 2025."},"date_updated":"2025-05-19T14:05:22Z","abstract":[{"text":"We developed in-situ engineered polycrystalline polythiophene (PTh) and its composite with reduced graphene oxide (PTh-rGO) via a simple chemical synthesis. The PTh-rGO-based electrodes in a symmetrical device with xanthan gum in 1 M aq. Na2SO4 as an electrolyte, delivers a specific capacitance (Csp) of 114.7 F g–1 (electrode) and 28.7 F g–1 (cell) at an applied current density of 0.2 A g−1. The maximum energy and power densities recorded from the device were 588.0 mWh kg−1 and 1.1 kW kg−1 at 1.5 A g−1. The device exhibited a remarkable retention of Csp of 98.9 % over 10,000 continuous galvanostatic charge–discharge cycles highlighting an excellent performance. Electrochemical impedance spectroscopy analysis emphasizes material’s excellent structural integrity. This is attributed to the crystalline phases present in the matrix.","lang":"eng"}],"date_created":"2024-12-22T23:01:47Z","type":"journal_article","publication_identifier":{"eissn":["1873-4979"],"issn":["0167-577X"]},"oa_version":"None","scopus_import":"1"},{"quality_controlled":"1","publication_status":"published","OA_type":"closed access","publication":"Journal of Materials Science","_id":"19374","intvolume":"        60","article_type":"original","day":"08","language":[{"iso":"eng"}],"volume":60,"department":[{"_id":"MaIb"}],"month":"02","status":"public","author":[{"orcid":"0000-0003-2209-5269","full_name":"Singh, Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","first_name":"Saurabh","last_name":"Singh"},{"last_name":"Provino","first_name":"A.","full_name":"Provino, A."},{"last_name":"Pallecchi","full_name":"Pallecchi, I.","first_name":"I."},{"last_name":"Caglieris","first_name":"F.","full_name":"Caglieris, F."},{"full_name":"Mödlinger, M.","first_name":"M.","last_name":"Mödlinger"},{"full_name":"Mele, P.","first_name":"P.","last_name":"Mele"},{"last_name":"Latronico","full_name":"Latronico, G.","first_name":"G."},{"full_name":"Takeuchi, T.","first_name":"T.","last_name":"Takeuchi"},{"first_name":"P.","full_name":"Manfrinetti, P.","last_name":"Manfrinetti"}],"date_published":"2025-02-08T00:00:00Z","publication_identifier":{"issn":["0022-2461"],"eissn":["1573-4803"]},"publisher":"Springer Nature","scopus_import":"1","oa_version":"None","doi":"10.1007/s10853-024-10582-y","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","article_processing_charge":"No","article_number":"100051","citation":{"ama":"Singh S, Provino A, Pallecchi I, et al. The new PrNi6Si6 intermetallic: From crystal structure to thermal and electrical transport properties across a wide temperature range (2–900 K). <i>Journal of Materials Science</i>. 2025;60. doi:<a href=\"https://doi.org/10.1007/s10853-024-10582-y\">10.1007/s10853-024-10582-y</a>","ista":"Singh S, Provino A, Pallecchi I, Caglieris F, Mödlinger M, Mele P, Latronico G, Takeuchi T, Manfrinetti P. 2025. The new PrNi6Si6 intermetallic: From crystal structure to thermal and electrical transport properties across a wide temperature range (2–900 K). Journal of Materials Science. 60, 100051.","short":"S. Singh, A. Provino, I. Pallecchi, F. Caglieris, M. Mödlinger, P. Mele, G. Latronico, T. Takeuchi, P. Manfrinetti, Journal of Materials Science 60 (2025).","chicago":"Singh, Saurabh, A. Provino, I. Pallecchi, F. Caglieris, M. Mödlinger, P. Mele, G. Latronico, T. Takeuchi, and P. Manfrinetti. “The New PrNi6Si6 Intermetallic: From Crystal Structure to Thermal and Electrical Transport Properties across a Wide Temperature Range (2–900 K).” <i>Journal of Materials Science</i>. Springer Nature, 2025. <a href=\"https://doi.org/10.1007/s10853-024-10582-y\">https://doi.org/10.1007/s10853-024-10582-y</a>.","apa":"Singh, S., Provino, A., Pallecchi, I., Caglieris, F., Mödlinger, M., Mele, P., … Manfrinetti, P. (2025). The new PrNi6Si6 intermetallic: From crystal structure to thermal and electrical transport properties across a wide temperature range (2–900 K). <i>Journal of Materials Science</i>. Springer Nature. <a href=\"https://doi.org/10.1007/s10853-024-10582-y\">https://doi.org/10.1007/s10853-024-10582-y</a>","mla":"Singh, Saurabh, et al. “The New PrNi6Si6 Intermetallic: From Crystal Structure to Thermal and Electrical Transport Properties across a Wide Temperature Range (2–900 K).” <i>Journal of Materials Science</i>, vol. 60, 100051, Springer Nature, 2025, doi:<a href=\"https://doi.org/10.1007/s10853-024-10582-y\">10.1007/s10853-024-10582-y</a>.","ieee":"S. Singh <i>et al.</i>, “The new PrNi6Si6 intermetallic: From crystal structure to thermal and electrical transport properties across a wide temperature range (2–900 K),” <i>Journal of Materials Science</i>, vol. 60. Springer Nature, 2025."},"date_updated":"2025-03-10T06:53:16Z","abstract":[{"lang":"eng","text":"In the present study, the new ternary rare earth intermetallic compound PrNi6Si6 has been investigated. This work completes the study of the RNi6Si6 series (R = rare earth). While the RNi6Si6 compounds for R = La and Ce adopt the CeNi6Si6-type (tP52, P4/nbm, No. 125), surprisingly PrNi6Si6 crystallizes in the YNi6Si6 prototype (tP52, P − 4b2, No. 117) as do all the heavier lanthanides (but Lu). The YNi6Si6-type and its homolog CeNi6Si6 are two tetragonal ordered derivative of the cubic NaZn13-type structure. Lattice parameters for PrNi6Si6 are a = 7.7846(1) Å, c = 11.2144(1) Å, with a unit cell volume, Vobs = 679.585(5) Å3. The temperature dependence of the inverse magnetic susceptibility χ−1(T) follows the Curie–Weiss law, with calculated values of the effective magnetic moment (µeff) and Weiss temperature (Θpm) of 3.55 μB and − 4.5 K, respectively. While the observed µeff is very close to the theoretical value of 3.58 µB for the free Pr3+ ions, a negative value of the Weiss temperature suggests antiferromagnetic interactions in PrNi6Si6. Magnetization measurements confirm that PrNi₆Si₆ orders antiferromagnetically (AFM) below a Néel temperature (TN) of 9 K. The Ni atoms contribute negligibly to the magnetic properties of this phase. The specific heat of PrNi₆Si₆ is approximately 0.42 J K  − 1  g − 1. Measurements of electric and thermal transport reveal that PrNi₆Si₆ exhibits metallic behavior across a wide temperature range of 2–900 K, accompanied by a relatively low thermal conductivity of around 6 W K − 1 m − 1 at room temperature. Such properties, together with its high-temperature refractory behavior, make PrNi₆Si₆ worthy of consideration in technological applications where fairly good electrical conductivity should be accompanied by a limited thermal conductivity."}],"date_created":"2025-03-09T23:01:29Z","year":"2025","type":"journal_article","title":"The new PrNi6Si6 intermetallic: From crystal structure to thermal and electrical transport properties across a wide temperature range (2–900 K)"},{"_id":"14652","issue":"2","article_type":"original","quality_controlled":"1","publication_status":"published","author":[{"first_name":"Shyam Lal","full_name":"Gupta, Shyam Lal","last_name":"Gupta"},{"full_name":"Singh, Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","first_name":"Saurabh","last_name":"Singh","orcid":"0000-0003-2209-5269"},{"full_name":"Kumar, Sumit","first_name":"Sumit","last_name":"Kumar"},{"last_name":"Anupam","first_name":"Unknown","full_name":"Anupam, Unknown"},{"last_name":"Thakur","first_name":"Samjeet Singh","full_name":"Thakur, Samjeet Singh"},{"last_name":"Kumar","first_name":"Ashish","full_name":"Kumar, Ashish"},{"full_name":"Panwar, Sanjay","first_name":"Sanjay","last_name":"Panwar"},{"first_name":"D.","full_name":"Diwaker, D.","last_name":"Diwaker"}],"month":"02","status":"public","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publisher":"Elsevier","doi":"10.1016/j.physb.2023.415539","year":"2024","title":"Ab-initio stability of Iridium based newly proposed full and quaternary heusler alloys","isi":1,"intvolume":"       674","day":"01","external_id":{"isi":["001127429000001"]},"publication":"Physica B: Condensed Matter","date_published":"2024-02-01T00:00:00Z","volume":674,"language":[{"iso":"eng"}],"department":[{"_id":"MaIb"}],"publication_identifier":{"issn":["0921-4526"]},"oa_version":"None","scopus_import":"1","citation":{"short":"S.L. Gupta, S. Singh, S. Kumar, U. Anupam, S.S. Thakur, A. Kumar, S. Panwar, D. Diwaker, Physica B: Condensed Matter 674 (2024).","ista":"Gupta SL, Singh S, Kumar S, Anupam U, Thakur SS, Kumar A, Panwar S, Diwaker D. 2024. Ab-initio stability of Iridium based newly proposed full and quaternary heusler alloys. Physica B: Condensed Matter. 674(2), 415539.","ama":"Gupta SL, Singh S, Kumar S, et al. Ab-initio stability of Iridium based newly proposed full and quaternary heusler alloys. <i>Physica B: Condensed Matter</i>. 2024;674(2). doi:<a href=\"https://doi.org/10.1016/j.physb.2023.415539\">10.1016/j.physb.2023.415539</a>","mla":"Gupta, Shyam Lal, et al. “Ab-Initio Stability of Iridium Based Newly Proposed Full and Quaternary Heusler Alloys.” <i>Physica B: Condensed Matter</i>, vol. 674, no. 2, 415539, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.physb.2023.415539\">10.1016/j.physb.2023.415539</a>.","ieee":"S. L. Gupta <i>et al.</i>, “Ab-initio stability of Iridium based newly proposed full and quaternary heusler alloys,” <i>Physica B: Condensed Matter</i>, vol. 674, no. 2. Elsevier, 2024.","chicago":"Gupta, Shyam Lal, Saurabh Singh, Sumit Kumar, Unknown Anupam, Samjeet Singh Thakur, Ashish Kumar, Sanjay Panwar, and D. Diwaker. “Ab-Initio Stability of Iridium Based Newly Proposed Full and Quaternary Heusler Alloys.” <i>Physica B: Condensed Matter</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.physb.2023.415539\">https://doi.org/10.1016/j.physb.2023.415539</a>.","apa":"Gupta, S. L., Singh, S., Kumar, S., Anupam, U., Thakur, S. S., Kumar, A., … Diwaker, D. (2024). Ab-initio stability of Iridium based newly proposed full and quaternary heusler alloys. <i>Physica B: Condensed Matter</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.physb.2023.415539\">https://doi.org/10.1016/j.physb.2023.415539</a>"},"date_updated":"2025-09-04T11:29:46Z","date_created":"2023-12-10T23:00:56Z","abstract":[{"text":"In order to demonstrate the stability of newly proposed iridium-based Ir2Cr(In,Sn) and IrRhCr(In,Sn) heusler alloys, we present ab-initio analysis of these alloys by examining various properties to prove their stability. The stability of these alloys can be inferred from different cohesive and formation energies as well as positive phonon frequencies. Their electronic structure results indicate that they are semi-metals in nature. The magnetic moments are computed using the Slater-Pauling formula and exhibit a high value, with the Cr atom contributing the most in all alloys. Mulliken’s charge analysis results show that our alloys contain a range of linkages, mainly ionic and covalent ones. The ductility and mechanical stability of these alloys are confirmed by elastic constants viz. Poisson’s ratio, Pugh’s ratio, and many different types of elastic moduli.","lang":"eng"}],"type":"journal_article","article_processing_charge":"No","article_number":"415539"},{"user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Elsevier","doi":"10.1016/j.physb.2024.416018","title":"Tunable magnetoelectronic properties in Bi3+ substituted YCrO3","year":"2024","_id":"18937","article_type":"original","publication_status":"published","quality_controlled":"1","author":[{"last_name":"Ray","full_name":"Ray, Sujata Kumari","first_name":"Sujata Kumari"},{"last_name":"Pati","first_name":"Anupama","full_name":"Pati, Anupama"},{"first_name":"Payala","full_name":"Sahoo, Payala","last_name":"Sahoo"},{"last_name":"Sahoo","full_name":"Sahoo, A.K.","first_name":"A.K."},{"last_name":"Singh","full_name":"Singh, Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","first_name":"Saurabh","orcid":"0000-0003-2209-5269"},{"last_name":"Takeuchi","first_name":"Tsunehiro","full_name":"Takeuchi, Tsunehiro"},{"first_name":"S.","full_name":"Dash, S.","last_name":"Dash"}],"month":"07","status":"public","publication_identifier":{"issn":["0921-4526"]},"oa_version":"None","scopus_import":"1","citation":{"chicago":"Ray, Sujata Kumari, Anupama Pati, Payala Sahoo, A.K. Sahoo, Saurabh Singh, Tsunehiro Takeuchi, and S. Dash. “Tunable Magnetoelectronic Properties in Bi3+ Substituted YCrO3.” <i>Physica B: Condensed Matter</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.physb.2024.416018\">https://doi.org/10.1016/j.physb.2024.416018</a>.","apa":"Ray, S. K., Pati, A., Sahoo, P., Sahoo, A. K., Singh, S., Takeuchi, T., &#38; Dash, S. (2024). Tunable magnetoelectronic properties in Bi3+ substituted YCrO3. <i>Physica B: Condensed Matter</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.physb.2024.416018\">https://doi.org/10.1016/j.physb.2024.416018</a>","ieee":"S. K. Ray <i>et al.</i>, “Tunable magnetoelectronic properties in Bi3+ substituted YCrO3,” <i>Physica B: Condensed Matter</i>, vol. 685. Elsevier, 2024.","mla":"Ray, Sujata Kumari, et al. “Tunable Magnetoelectronic Properties in Bi3+ Substituted YCrO3.” <i>Physica B: Condensed Matter</i>, vol. 685, 416018, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.physb.2024.416018\">10.1016/j.physb.2024.416018</a>.","ama":"Ray SK, Pati A, Sahoo P, et al. Tunable magnetoelectronic properties in Bi3+ substituted YCrO3. <i>Physica B: Condensed Matter</i>. 2024;685. doi:<a href=\"https://doi.org/10.1016/j.physb.2024.416018\">10.1016/j.physb.2024.416018</a>","short":"S.K. Ray, A. Pati, P. Sahoo, A.K. Sahoo, S. Singh, T. Takeuchi, S. Dash, Physica B: Condensed Matter 685 (2024).","ista":"Ray SK, Pati A, Sahoo P, Sahoo AK, Singh S, Takeuchi T, Dash S. 2024. Tunable magnetoelectronic properties in Bi3+ substituted YCrO3. Physica B: Condensed Matter. 685, 416018."},"date_updated":"2025-01-29T08:37:14Z","date_created":"2025-01-29T08:33:04Z","abstract":[{"lang":"eng","text":"A detailed structural, magnetic as well as dielectric dynamics study is carried out to investigate the influence of Bi3+ on YCrO3. All the samples crystalize in orthorhombic structure with Pnma symmetry and the grains are mostly stretched with Bi. A coexisting tunable fraction of both antiferromagnetic (AFM) and weak ferromagnetic (WFM) phases is acquired by the system down to Low-T. An abnormal negative magnetization in zero field is correlated to the competition among AFM and WFM phases. Maximum magnetization decreases while the coercivity first increases and then decreases with Bi is correlated to the competing effect between the local deformation and Cr–O–Cr exchange interaction. The magnetodielectric coupling with improved permittivity might be associated with the 6s2 lone pair electron of Bi3+. Furthermore, ac-conductivity increases with a decrease in activation energy (0.27–0.11 eV), is explained in the framework of structural model and charge carrier hopping between Cr3+ and Cr4+ ions."}],"type":"journal_article","article_processing_charge":"No","acknowledgement":"The authors would like to acknowledge MHRD, Government of India for financial support. The author is also thankful to RRCAT, Indore for providing XPS beamline-14 of Indus II to conduct experimental work.","article_number":"416018","intvolume":"       685","day":"15","publication":"Physica B: Condensed Matter","OA_type":"closed access","date_published":"2024-07-15T00:00:00Z","volume":685,"language":[{"iso":"eng"}],"department":[{"_id":"MaIb"}]},{"keyword":["Electrical and Electronic Engineering","Materials Chemistry","Electrochemistry","Energy Engineering and Power Technology","Chemical Engineering (miscellaneous)"],"date_published":"2024-01-08T00:00:00Z","department":[{"_id":"MaIb"}],"volume":7,"language":[{"iso":"eng"}],"day":"08","intvolume":"         7","publication":"ACS Applied Energy Materials","external_id":{"isi":["001138342900001"]},"type":"journal_article","date_created":"2024-01-17T12:48:35Z","abstract":[{"text":"Production of hydrogen at large scale requires development of non-noble, inexpensive, and high-performing catalysts for constructing water-splitting devices. Herein, we report the synthesis of Zn-doped NiO heterostructure (ZnNiO) catalysts at room temperature via a coprecipitation method followed by drying (at 80 °C, 6 h) and calcination at an elevated temperature of 400 °C for 5 h under three distinct conditions, namely, air, N2, and vacuum. The vacuum-synthesized catalyst demonstrates a low overpotential of 88 mV at −10 mA cm–2 and a small Tafel slope of 73 mV dec–1 suggesting relatively higher charge transfer kinetics for hydrogen evolution reactions (HER) compared with the specimens synthesized under N2 or O2 atmosphere. It also demonstrates an oxygen evolution (OER) overpotential of 260 mV at 10 mA cm–2 with a low Tafel slope of 63 mV dec–1. In a full-cell water-splitting device, the vacuum-synthesized ZnNiO heterostructure demonstrates a cell voltage of 1.94 V at 50 mA cm–2 and shows remarkable stability over 24 h at a high current density of 100 mA cm–2. It is also demonstrated in this study that Zn-doping, surface, and interface engineering in transition-metal oxides play a crucial role in efficient electrocatalytic water splitting. Also, the results obtained from density functional theory (DFT + U = 0–8 eV), where U is the on-site Coulomb repulsion parameter also known as Hubbard U, based electronic structure calculations confirm that Zn doping constructively modifies the electronic structure, in both the valence band and the conduction band, and found to be suitable in tailoring the carrier’s effective masses of electrons and holes. The decrease in electron’s effective masses together with large differences between the effective masses of electrons and holes is noticed, which is found to be mainly responsible for achieving the best water-splitting performance from a 9% Zn-doped NiO sample prepared under vacuum.","lang":"eng"}],"date_updated":"2024-10-09T21:07:53Z","citation":{"apa":"Kiran, G. K., Singh, S., Mahato, N., Sreekanth, T. V. M., Dillip, G. R., Yoo, K., &#38; Kim, J. (2024). Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. <i>ACS Applied Energy Materials</i>. American Chemical Society. <a href=\"https://doi.org/10.1021/acsaem.3c02519\">https://doi.org/10.1021/acsaem.3c02519</a>","chicago":"Kiran, Gundegowda Kalligowdanadoddi, Saurabh Singh, Neelima Mahato, Thupakula Venkata Madhukar Sreekanth, Gowra Raghupathy Dillip, Kisoo Yoo, and Jonghoon Kim. “Interface Engineering Modulation Combined with Electronic Structure Modification of Zn-Doped NiO Heterostructure for Efficient Water-Splitting Activity.” <i>ACS Applied Energy Materials</i>. American Chemical Society, 2024. <a href=\"https://doi.org/10.1021/acsaem.3c02519\">https://doi.org/10.1021/acsaem.3c02519</a>.","mla":"Kiran, Gundegowda Kalligowdanadoddi, et al. “Interface Engineering Modulation Combined with Electronic Structure Modification of Zn-Doped NiO Heterostructure for Efficient Water-Splitting Activity.” <i>ACS Applied Energy Materials</i>, vol. 7, no. 1, American Chemical Society, 2024, pp. 214–29, doi:<a href=\"https://doi.org/10.1021/acsaem.3c02519\">10.1021/acsaem.3c02519</a>.","ieee":"G. K. Kiran <i>et al.</i>, “Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity,” <i>ACS Applied Energy Materials</i>, vol. 7, no. 1. American Chemical Society, pp. 214–229, 2024.","ama":"Kiran GK, Singh S, Mahato N, et al. Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. <i>ACS Applied Energy Materials</i>. 2024;7(1):214-229. doi:<a href=\"https://doi.org/10.1021/acsaem.3c02519\">10.1021/acsaem.3c02519</a>","ista":"Kiran GK, Singh S, Mahato N, Sreekanth TVM, Dillip GR, Yoo K, Kim J. 2024. Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity. ACS Applied Energy Materials. 7(1), 214–229.","short":"G.K. Kiran, S. Singh, N. Mahato, T.V.M. Sreekanth, G.R. Dillip, K. Yoo, J. Kim, ACS Applied Energy Materials 7 (2024) 214–229."},"acknowledgement":"This work was supported by the Technology Innovation Program (20011622, Development of Battery System Applied High-Efficiency Heat Control Polymer and Part Component) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea). Author acknowledge to Prof. Tsunehiro Takeuchi from Toyota Technological Institute, Nagoya, Japan for the support of computational resources.","article_processing_charge":"No","scopus_import":"1","oa_version":"None","publication_identifier":{"issn":["2574-0962"]},"author":[{"full_name":"Kiran, Gundegowda Kalligowdanadoddi","first_name":"Gundegowda Kalligowdanadoddi","last_name":"Kiran"},{"orcid":"0000-0003-2209-5269","first_name":"Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","full_name":"Singh, Saurabh","last_name":"Singh"},{"last_name":"Mahato","first_name":"Neelima","full_name":"Mahato, Neelima"},{"last_name":"Sreekanth","full_name":"Sreekanth, Thupakula Venkata Madhukar","first_name":"Thupakula Venkata Madhukar"},{"last_name":"Dillip","first_name":"Gowra Raghupathy","full_name":"Dillip, Gowra Raghupathy"},{"first_name":"Kisoo","full_name":"Yoo, Kisoo","last_name":"Yoo"},{"full_name":"Kim, Jonghoon","first_name":"Jonghoon","last_name":"Kim"}],"status":"public","month":"01","issue":"1","article_type":"original","_id":"14828","publication_status":"published","quality_controlled":"1","title":"Interface engineering modulation combined with electronic structure modification of Zn-doped NiO heterostructure for efficient water-splitting activity","year":"2024","isi":1,"corr_author":"1","page":"214-229","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","doi":"10.1021/acsaem.3c02519","publisher":"American Chemical Society"},{"publisher":"Elsevier","doi":"10.1016/j.est.2024.111464","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","title":"Polycrystalline phases engineered in-situ in polyaniline-graphene composite evoluting an exceptional stability and high charge storage capacity: An EIS investigative approach to evaluate material's stability","isi":1,"year":"2024","quality_controlled":"1","publication_status":"published","_id":"15314","article_type":"original","status":"public","month":"05","author":[{"last_name":"Mahato","full_name":"Mahato, Neelima","first_name":"Neelima"},{"orcid":"0000-0003-2209-5269","last_name":"Singh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","full_name":"Singh, Saurabh","first_name":"Saurabh"},{"last_name":"Sreekanth","full_name":"Sreekanth, T. V.M.","first_name":"T. V.M."},{"full_name":"Yoo, Kisoo","first_name":"Kisoo","last_name":"Yoo"},{"last_name":"Kim","full_name":"Kim, Jonghoon","first_name":"Jonghoon"}],"publication_identifier":{"eissn":["2352-152X"]},"oa_version":"None","scopus_import":"1","article_processing_charge":"No","article_number":"111464","acknowledgement":"This work was supported by Korea Institute of Energy Technology Evaluation and Planning (KETEP); and Ministry of Trade, Industry & Energy (MOTIE), Republic of Korea (Grant No. \r\n20210501010020).","date_updated":"2025-09-04T13:38:27Z","citation":{"ama":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. Polycrystalline phases engineered in-situ in polyaniline-graphene composite evoluting an exceptional stability and high charge storage capacity: An EIS investigative approach to evaluate material’s stability. <i>Journal of Energy Storage</i>. 2024;88. doi:<a href=\"https://doi.org/10.1016/j.est.2024.111464\">10.1016/j.est.2024.111464</a>","short":"N. Mahato, S. Singh, T.V.M. Sreekanth, K. Yoo, J. Kim, Journal of Energy Storage 88 (2024).","ista":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. 2024. Polycrystalline phases engineered in-situ in polyaniline-graphene composite evoluting an exceptional stability and high charge storage capacity: An EIS investigative approach to evaluate material’s stability. Journal of Energy Storage. 88, 111464.","apa":"Mahato, N., Singh, S., Sreekanth, T. V. M., Yoo, K., &#38; Kim, J. (2024). Polycrystalline phases engineered in-situ in polyaniline-graphene composite evoluting an exceptional stability and high charge storage capacity: An EIS investigative approach to evaluate material’s stability. <i>Journal of Energy Storage</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.est.2024.111464\">https://doi.org/10.1016/j.est.2024.111464</a>","chicago":"Mahato, Neelima, Saurabh Singh, T. V.M. Sreekanth, Kisoo Yoo, and Jonghoon Kim. “Polycrystalline Phases Engineered In-Situ in Polyaniline-Graphene Composite Evoluting an Exceptional Stability and High Charge Storage Capacity: An EIS Investigative Approach to Evaluate Material’s Stability.” <i>Journal of Energy Storage</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.est.2024.111464\">https://doi.org/10.1016/j.est.2024.111464</a>.","ieee":"N. Mahato, S. Singh, T. V. M. Sreekanth, K. Yoo, and J. Kim, “Polycrystalline phases engineered in-situ in polyaniline-graphene composite evoluting an exceptional stability and high charge storage capacity: An EIS investigative approach to evaluate material’s stability,” <i>Journal of Energy Storage</i>, vol. 88. Elsevier, 2024.","mla":"Mahato, Neelima, et al. “Polycrystalline Phases Engineered In-Situ in Polyaniline-Graphene Composite Evoluting an Exceptional Stability and High Charge Storage Capacity: An EIS Investigative Approach to Evaluate Material’s Stability.” <i>Journal of Energy Storage</i>, vol. 88, 111464, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.est.2024.111464\">10.1016/j.est.2024.111464</a>."},"type":"journal_article","date_created":"2024-04-14T22:01:01Z","abstract":[{"text":"Development of electroactive materials exhibiting high performance with superior stability is crucial in the field of supercapacitors and battery research. We report on synthesis of highly stable composite of semi-polycrystalline polyaniline and graphene (SPani-graphene) and its application in supercapacitor electrodes. The electrochemical behavior and device performance of the electrodes were investigated through cyclic voltammetry (CV), galvanostatic charge-discharge GCD) and electrochemical impedance spectroscopy (EIS) in a 3-electrode and a 2-electrode (device) cell configurations, repectively. The cell specific capacitance (Cell Csp) achieved from the 2-electrode symmetric cell configuration was 525.5 F g−1 at 0.1 A g−1 using polymer gel electrolyte (PGE). The PGE in this work is xanthan gum jellied in 1 M aq. Na2SO4. The maximum energy density and power density achieved from the device was 46.7 Wh kg−1 and 16.16 kW kg−1, respectively, at 0.4 A g−1. Furthermore, the device exhibits an excellent retention of cell specific capacitance and coulombic efficiency of 97 % and 94 %, respectively, over 10,000 continuous GCD cycles, indicating an excellent rate capability as well as a promising power management. To investigate the material's electrochemical durability, a detailed EIS study has been carried out using both, 3-electrode, and 2-electrode cell configurations, before and after long cycling test (over 10,000 continuous GCD cycles). Our thorough experimentation delivers satisfactory results and has been explained in detail in the manuscript. Hereby, we propose that the EIS technique can be adopted for investigating materials' electrochemical stability, in addition to long CV and GCD cycles in the field of supercapacitors and battery research.","lang":"eng"}],"external_id":{"isi":["001287584100001"]},"publication":"Journal of Energy Storage","day":"30","intvolume":"        88","volume":88,"language":[{"iso":"eng"}],"department":[{"_id":"MaIb"}],"date_published":"2024-05-30T00:00:00Z"},{"user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","publisher":"Elsevier","doi":"10.1016/j.matlet.2024.136483","corr_author":"1","isi":1,"title":"In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage","year":"2024","_id":"15348","article_type":"original","publication_status":"published","quality_controlled":"1","author":[{"full_name":"Mahato, Neelima","first_name":"Neelima","last_name":"Mahato"},{"last_name":"Singh","first_name":"Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","full_name":"Singh, Saurabh","orcid":"0000-0003-2209-5269"},{"last_name":"Sreekanth","first_name":"T. V.M.","full_name":"Sreekanth, T. V.M."},{"last_name":"Yoo","full_name":"Yoo, Kisoo","first_name":"Kisoo"},{"first_name":"Jonghoon","full_name":"Kim, Jonghoon","last_name":"Kim"}],"status":"public","month":"06","publication_identifier":{"eissn":["1873-4979"],"issn":["0167-577X"]},"scopus_import":"1","oa_version":"None","date_updated":"2025-09-04T13:49:05Z","citation":{"ama":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. <i>Materials Letters</i>. 2024;365. doi:<a href=\"https://doi.org/10.1016/j.matlet.2024.136483\">10.1016/j.matlet.2024.136483</a>","ista":"Mahato N, Singh S, Sreekanth TVM, Yoo K, Kim J. 2024. In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. Materials Letters. 365, 136483.","short":"N. Mahato, S. Singh, T.V.M. Sreekanth, K. Yoo, J. Kim, Materials Letters 365 (2024).","apa":"Mahato, N., Singh, S., Sreekanth, T. V. M., Yoo, K., &#38; Kim, J. (2024). In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage. <i>Materials Letters</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.matlet.2024.136483\">https://doi.org/10.1016/j.matlet.2024.136483</a>","chicago":"Mahato, Neelima, Saurabh Singh, T. V.M. Sreekanth, Kisoo Yoo, and Jonghoon Kim. “In-Situ Engineered Highly Crystalline Polythiophene Empowered Electrochemical Capacitor-I: Synthesis, Characterization, and Electrochemical Charge Storage.” <i>Materials Letters</i>. Elsevier, 2024. <a href=\"https://doi.org/10.1016/j.matlet.2024.136483\">https://doi.org/10.1016/j.matlet.2024.136483</a>.","mla":"Mahato, Neelima, et al. “In-Situ Engineered Highly Crystalline Polythiophene Empowered Electrochemical Capacitor-I: Synthesis, Characterization, and Electrochemical Charge Storage.” <i>Materials Letters</i>, vol. 365, 136483, Elsevier, 2024, doi:<a href=\"https://doi.org/10.1016/j.matlet.2024.136483\">10.1016/j.matlet.2024.136483</a>.","ieee":"N. Mahato, S. Singh, T. V. M. Sreekanth, K. Yoo, and J. Kim, “In-situ engineered highly crystalline polythiophene empowered electrochemical capacitor-I: Synthesis, characterization, and electrochemical charge storage,” <i>Materials Letters</i>, vol. 365. Elsevier, 2024."},"type":"journal_article","abstract":[{"text":"We report on synthesis of highly crystalline polythiophene and its application in supercapacitor electrodes. The material exhibits a remarkably stable electrochemical behavior and an excellent device performance. The device delivers an electrode specific capacitance (Csp) of 129.13F g−1, Cell Csp of 32.28F g−1 at 0.5 A/g; energy, and power densities of ∼ 3 Wh kg−1 and 250 W kg -1, respectively at 0.5 A/g. Also, it exhibits an excellent retention of Cell Csp and coulombic efficiency up to ∼ 95 % over 10,000 continuous galvanostatic charge discharge (GCD) cycles indicating a remarkable performance by a standalone, pristine and undoped polythiophene. Electrochemical impedance spectroscopy (EIS) studies further suggest material’s stable capacitive behavior. The material’s enhanced electrochemical properties, stable behavior and outstanding performance in device application are attributed to the crystalline phases present in the polymer matrix achievable via a slow rate of synthesis; overall, an edge over other conventional synthesis methods.","lang":"eng"}],"date_created":"2024-04-28T22:00:56Z","article_processing_charge":"No","acknowledgement":"This research was supported by the Korea Evaluation Institute of Industrial Technology (No. 200116167, Development of Battery Safety Diagnosis System (BDS) SoC that predicts the internal state, explosion risk, remaining useful life, and replacement timing of electric vehicle batteries).","article_number":"136483","day":"15","intvolume":"       365","external_id":{"isi":["001300025600001"]},"OA_type":"closed access","publication":"Materials Letters","date_published":"2024-06-15T00:00:00Z","language":[{"iso":"eng"}],"volume":365,"department":[{"_id":"MaIb"}]},{"intvolume":"       299","day":"01","external_id":{"isi":["001083568900001"]},"publication":"Synthetic Metals","date_published":"2023-11-01T00:00:00Z","volume":299,"language":[{"iso":"eng"}],"department":[{"_id":"MaIb"}],"publication_identifier":{"issn":["0379-6779"]},"scopus_import":"1","oa_version":"None","citation":{"ista":"Mahato N, Singh S, Faisal M, Sreekanth TVM, Majumder S, Yoo K, Kim J. 2023. Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite. Synthetic Metals. 299, 117463.","short":"N. Mahato, S. Singh, M. Faisal, T.V.M. Sreekanth, S. Majumder, K. Yoo, J. Kim, Synthetic Metals 299 (2023).","ama":"Mahato N, Singh S, Faisal M, et al. Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite. <i>Synthetic Metals</i>. 2023;299. doi:<a href=\"https://doi.org/10.1016/j.synthmet.2023.117463\">10.1016/j.synthmet.2023.117463</a>","apa":"Mahato, N., Singh, S., Faisal, M., Sreekanth, T. V. M., Majumder, S., Yoo, K., &#38; Kim, J. (2023). Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite. <i>Synthetic Metals</i>. Elsevier. <a href=\"https://doi.org/10.1016/j.synthmet.2023.117463\">https://doi.org/10.1016/j.synthmet.2023.117463</a>","chicago":"Mahato, Neelima, Saurabh Singh, Mohammad Faisal, T. V.M. Sreekanth, Sutripto Majumder, Kisoo Yoo, and Jonghoon Kim. “Polycrystalline Phases Grown In-Situ Engendering Unique Mechanism of Charge Storage in Polyaniline-Graphite Composite.” <i>Synthetic Metals</i>. Elsevier, 2023. <a href=\"https://doi.org/10.1016/j.synthmet.2023.117463\">https://doi.org/10.1016/j.synthmet.2023.117463</a>.","ieee":"N. Mahato <i>et al.</i>, “Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite,” <i>Synthetic Metals</i>, vol. 299. Elsevier, 2023.","mla":"Mahato, Neelima, et al. “Polycrystalline Phases Grown In-Situ Engendering Unique Mechanism of Charge Storage in Polyaniline-Graphite Composite.” <i>Synthetic Metals</i>, vol. 299, 117463, Elsevier, 2023, doi:<a href=\"https://doi.org/10.1016/j.synthmet.2023.117463\">10.1016/j.synthmet.2023.117463</a>."},"date_updated":"2024-01-30T13:55:50Z","date_created":"2023-10-01T22:01:13Z","abstract":[{"text":"We report on a simple surfactant/template free chemical route for the synthesis of semi-polycrystalline polyaniline-graphite (SPani-graphite) composite and its application as an electroactive material in electrochemical charge storage. The synthesized material exhibits well-defined poly-crystallographic lattices in high resolution transmission electron micrographs and sharp peaks in x-ray diffraction spectra suggesting crystalline nature of the material. The specific capacitance computed from the galvanostatic charge-discharge (GCD) data obtained from 3-electrode cell configuration using 1 M aq. Na2SO4 as an electrolyte was 111.4 F g−1 at a current density of 0.1 A g−1 which rises to 269 F g−1 at an elevated current density of 1.0 A g−1. A similar pattern of increase in the specific capacitance values with an increase in the current density was observed in the results obtained from 2-electrode symmetric device configuration using polymer gel electrolyte (xanthan gum in 1 M aq. Na2SO4). The specific capacitance computed from the GCD data obtained from the device configuration was 20 F g−1 at the current density of 1.0 A g−1. The device delivers an energy density of 1.7 Wh kg−1 and a power density of 2.48 kWh kg−1 at an applied current density of 0.5 A g−1 suggesting an excellent rate capability and power management. In addition, the device exhibits ⁓92 % specific capacitance retention up to 8000 continuous GCD cycles and ⁓80 % coulombic efficiency up to 10,000 continuous GCD cycles indicating excellent cycling stability. The unique feature of increasing specific capacitance with respect to applied current density is attributed to the presence of semi-polycrystalline phases in the SPani-graphite matrix. The material behaves as a surface redox supercapacitor and its unique mechanism of charge storage is discussed in detail in the article.","lang":"eng"}],"type":"journal_article","article_processing_charge":"No","acknowledgement":"This work was supported by 2023 Yeungnam University Research Grant.","article_number":"117463","_id":"14379","article_type":"original","publication_status":"published","quality_controlled":"1","author":[{"full_name":"Mahato, Neelima","first_name":"Neelima","last_name":"Mahato"},{"orcid":"0000-0003-2209-5269","first_name":"Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","full_name":"Singh, Saurabh","last_name":"Singh"},{"full_name":"Faisal, Mohammad","first_name":"Mohammad","last_name":"Faisal"},{"full_name":"Sreekanth, T. V.M.","first_name":"T. V.M.","last_name":"Sreekanth"},{"first_name":"Sutripto","full_name":"Majumder, Sutripto","last_name":"Majumder"},{"first_name":"Kisoo","full_name":"Yoo, Kisoo","last_name":"Yoo"},{"last_name":"Kim","full_name":"Kim, Jonghoon","first_name":"Jonghoon"}],"month":"11","status":"public","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87","publisher":"Elsevier","doi":"10.1016/j.synthmet.2023.117463","title":"Polycrystalline phases grown in-situ engendering unique mechanism of charge storage in polyaniline-graphite composite","year":"2023","isi":1},{"department":[{"_id":"MaIb"}],"ddc":["540"],"language":[{"iso":"eng"}],"volume":13,"date_published":"2023-12-01T00:00:00Z","keyword":["General Physics and Astronomy"],"publication":"AIP Advances","external_id":{"isi":["001114917200005"]},"has_accepted_license":"1","intvolume":"        13","day":"01","acknowledgement":"This work received financial support partially from Japan Science and Technology Agency (JST) CREST Grant No. JPMJCR18I2, Japan. The powder-XRD experiments were conducted at BL5S2 of Aichi Synchrotron Radiation Center, Aichi Science & Technology Foundation, Aichi, Japan (Proposal No. 202301057).","article_number":"125206","article_processing_charge":"Yes","abstract":[{"lang":"eng","text":"The effects of the partial V-substitution for Ag on the thermoelectric (TE) properties are investigated for a flexible semiconducting compound Ag2S0.55Se0.45. Density functional theory calculations predict that such a partial V-substitution constructively modifies the electronic structure near the bottom of the conduction band to improve the TE performance. The synthesized Ag1.97V0.03S0.55Se0.45 is found to possess a TE dimensionless figure-of-merit (ZT) of 0.71 at 350 K with maintaining its flexible nature. This ZT value is relatively high in comparison with those reported for flexible TE materials below 360 K. The increase in the ZT value is caused by the enhanced absolute value of the Seebeck coefficient with less significant variation in electrical resistivity. The high ZT value with the flexible nature naturally allows us to employ the Ag1.97V0.03S0.55Se0.45 as a component of flexible TE generators."}],"date_created":"2024-01-10T09:26:08Z","type":"journal_article","citation":{"mla":"Sato, Kosuke, et al. “Improvement of Thermoelectric Performance of Flexible Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution for Ag.” <i>AIP Advances</i>, vol. 13, no. 12, 125206, AIP Publishing, 2023, doi:<a href=\"https://doi.org/10.1063/5.0171888\">10.1063/5.0171888</a>.","ieee":"K. Sato <i>et al.</i>, “Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag,” <i>AIP Advances</i>, vol. 13, no. 12. AIP Publishing, 2023.","apa":"Sato, K., Singh, S., Yamazaki, I., Hirata, K., Ang, A. K. R., Matsunami, M., &#38; Takeuchi, T. (2023). Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. <i>AIP Advances</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0171888\">https://doi.org/10.1063/5.0171888</a>","chicago":"Sato, Kosuke, Saurabh Singh, Itsuki Yamazaki, Keisuke Hirata, Artoni Kevin R. Ang, Masaharu Matsunami, and Tsunehiro Takeuchi. “Improvement of Thermoelectric Performance of Flexible Compound Ag2S0.55Se0.45 by Means of Partial V-Substitution for Ag.” <i>AIP Advances</i>. AIP Publishing, 2023. <a href=\"https://doi.org/10.1063/5.0171888\">https://doi.org/10.1063/5.0171888</a>.","ama":"Sato K, Singh S, Yamazaki I, et al. Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. <i>AIP Advances</i>. 2023;13(12). doi:<a href=\"https://doi.org/10.1063/5.0171888\">10.1063/5.0171888</a>","short":"K. Sato, S. Singh, I. Yamazaki, K. Hirata, A.K.R. Ang, M. Matsunami, T. Takeuchi, AIP Advances 13 (2023).","ista":"Sato K, Singh S, Yamazaki I, Hirata K, Ang AKR, Matsunami M, Takeuchi T. 2023. Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag. AIP Advances. 13(12), 125206."},"oa":1,"tmp":{"short":"CC BY (4.0)","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode"},"date_updated":"2024-10-09T21:07:49Z","oa_version":"Published Version","publication_identifier":{"eissn":["2158-3226"]},"month":"12","status":"public","author":[{"last_name":"Sato","full_name":"Sato, Kosuke","first_name":"Kosuke"},{"orcid":"0000-0003-2209-5269","first_name":"Saurabh","id":"12d625da-9cb3-11ed-9667-af09d37d3f0a","full_name":"Singh, Saurabh","last_name":"Singh"},{"last_name":"Yamazaki","first_name":"Itsuki","full_name":"Yamazaki, Itsuki"},{"first_name":"Keisuke","full_name":"Hirata, Keisuke","last_name":"Hirata"},{"last_name":"Ang","first_name":"Artoni Kevin R.","full_name":"Ang, Artoni Kevin R."},{"first_name":"Masaharu","full_name":"Matsunami, Masaharu","last_name":"Matsunami"},{"last_name":"Takeuchi","full_name":"Takeuchi, Tsunehiro","first_name":"Tsunehiro"}],"publication_status":"published","quality_controlled":"1","file_date_updated":"2024-01-10T13:47:31Z","article_type":"original","issue":"12","_id":"14777","license":"https://creativecommons.org/licenses/by/4.0/","file":[{"relation":"main_file","content_type":"application/pdf","access_level":"open_access","checksum":"a7098388b8ff822b47f5ddd37ed3bdbc","creator":"dernst","file_size":9676071,"file_id":"14792","success":1,"date_updated":"2024-01-10T13:47:31Z","date_created":"2024-01-10T13:47:31Z","file_name":"2023_AIPAdvances_Sato.pdf"}],"corr_author":"1","year":"2023","title":"Improvement of thermoelectric performance of flexible compound Ag2S0.55Se0.45 by means of partial V-substitution for Ag","isi":1,"doi":"10.1063/5.0171888","publisher":"AIP Publishing","user_id":"2DF688A6-F248-11E8-B48F-1D18A9856A87"}]