Ambient condition alcohol reforming to hydrogen with electricity output Manzoor Bhat, Zahid Manzoor Thimmappa, Ravikumar Dargily, Neethu Christudas Raafik, Abdul Kottaichamy, Alagar Raja Devendrachari, Mruthyunjayachari Chattanahalli Itagi, Mahesh Makri Nimbegondi Kotresh, Harish Freunberger, Stefan Alexander ; https://orcid.org/0000-0003-2902-5319 Ottakam Thotiyl, Musthafa “Hydrogen economy” could enable a carbon-neutral sustainable energy chain. However, issues with safety, storage, and transport of molecular hydrogen impede its realization. Alcohols as liquid H2 carriers could be enablers, but state-of-the-art reforming is difficult, requiring high temperatures >200 °C and pressures >25 bar, and the resulting H2 is carbonized beyond tolerance levels for direct use in fuel cells. Here, we demonstrate ambient temperature and pressure alcohol reforming in a fuel cell (ARFC) with a simultaneous electrical power output. The alcohol is oxidized at the alkaline anode, where the resulting CO2 is sequestrated as carbonate. Carbon-free H2 is liberated at the acidic cathode. The neutralization energy between the alkaline anode and the acidic cathode drives the process, particularly the unusually high entropy gain (1.27-fold ΔH). The significantly positive temperature coefficient of the resulting electromotive force allows us to harvest a large fraction of the output energy from the surrounding, achieving a thermodynamic efficiency as high as 2.27. MoS2 as the cathode catalyst allows alcohol reforming even under open-air conditions, a challenge that state-of-the-art alcohol reforming failed to overcome. We further show reforming of a wide range of alcohols. The ARFC offers an unprecedented route toward hydrogen economy as CO2 is simultaneously captured and pure H2 produced at mild conditions. American Chemical Society 2021 info:eu-repo/semantics/article doc-type:article text http://purl.org/coar/resource_type/c_2df8fbb1 https://research-explorer.ista.ac.at/record/9113 Manzoor Bhat ZM, Thimmappa R, Dargily NC, et al. Ambient condition alcohol reforming to hydrogen with electricity output. <i>ACS Sustainable Chemistry and Engineering</i>. 2021;9(8):3104-3111. doi:<a href="https://doi.org/10.1021/acssuschemeng.0c07547">10.1021/acssuschemeng.0c07547</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1021/acssuschemeng.0c07547 info:eu-repo/semantics/altIdentifier/e-issn/2168-0485 info:eu-repo/semantics/altIdentifier/wos/000625460400010 info:eu-repo/semantics/closedAccess