@article{15265,
  abstract     = {The highly enhanced thermoelectric figure of merit, zT ≈ 2.6 at 573 K, obtained recently in Cd-doped polycrystalline AgSbTe2 by Roychowdhury et al. ( Science 2021, 371, 722) brings it to the forefront of thermoelectric and energy materials research. Ag/Sb cationic ordering in polycrystalline AgSbTe2 was a challenging issue for a long time: their ordered arrangement in the cationic sublattice in polycrystalline samples remained elusive despite multiple theoretical predictions and experimental studies. Recently, selective cation doping has been used to enhance the Ag/Sb ordering, and cation ordered nanoscale (2–4 nm) domains were observed in polycrystalline AgSbTe2, which reduce lattice thermal conductivity. The enhanced cation ordering also delocalizes disorder-induced localized electronic states, and consequently the electronic transport enhances. In this Focus Review, we provide the details of the rational design of a high-performance thermoelectric material using the recently developed atomic order–disorder optimization strategy with AgSbTe2 as an example. Atomic disorder is ubiquitous in most thermoelectric materials, and the atomic order–disorder optimization strategy applies to a large variety of thermoelectric materials.},
  author       = {Ghosh, Tanmoy and Roychowdhury, Subhajit and Dutta, Moinak and Biswas, Kanishka},
  issn         = {2380-8195},
  journal      = {ACS Energy Letters},
  keywords     = {Materials Chemistry, Energy Engineering and Power Technology, Fuel Technology, Renewable Energy, Sustainability and the Environment, Chemistry (miscellaneous)},
  number       = {8},
  pages        = {2825--2837},
  publisher    = {American Chemical Society},
  title        = {{High-performance thermoelectric energy conversion: A tale of atomic ordering in AgSbTe2}},
  doi          = {10.1021/acsenergylett.1c01184},
  volume       = {6},
  year         = {2021},
}

@article{7287,
  abstract     = {Passivation layers on electrode materials are ubiquitous in nonaqueous battery chemistries and strongly govern performance and lifetime. They comprise breakdown products of the electrolyte including carbonate, alkyl carbonates, alkoxides, carboxylates, and polymers. Parasitic chemistry in metal–O2 batteries forms similar products and is tied to the deviation of the O2 balance from the ideal stoichiometry during formation/decomposition of alkaline peroxides or superoxides. Accurate and integral quantification of carbonaceous species and peroxides or superoxides in battery electrodes remains, however, elusive. We present a refined procedure to quantify them accurately and sensitively by pointing out and rectifying pitfalls of previous procedures. Carbonaceous compounds are differentiated into inorganic and organic ones. We combine mass and UV–vis spectrometry to quantify evolved O2 and complexed peroxide and CO2 evolved from carbonaceous compounds by acid treatment and Fenton’s reaction. The capabilities of the method are exemplified by means of Li–O2 and Na–O2 cathodes, graphite anodes, and LiNi0.8Co0.15Al0.05O2 cathodes.},
  author       = {Schafzahl, Bettina and Mourad, Eléonore and Schafzahl, Lukas and Petit, Yann K. and Raju, Anjana R. and Thotiyl, Musthafa Ottakam and Wilkening, Martin and Slugovc, Christian and Freunberger, Stefan Alexander},
  issn         = {2380-8195},
  journal      = {ACS Energy Letters},
  number       = {1},
  pages        = {170--176},
  publisher    = {ACS},
  title        = {{Quantifying total superoxide, peroxide, and carbonaceous compounds in metal–O2 batteries and the solid electrolyte interphase}},
  doi          = {10.1021/acsenergylett.7b01111},
  volume       = {3},
  year         = {2018},
}