Synthesis of High Entropy and Entropy-Stabilized Metal Sulfides and Their Evaluation as Hydrogen Evolution Electrocatalysts.

Autor:	Xiao W; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Li Y; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Elgendy A; Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K.; Egyptian Petroleum Research Institute, 11727 Cairo, Egypt., Duran EC; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Buckingham MA; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Spencer BF; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Han B; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Alam F; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Zhong X; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Cartmell SH; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Cernik RJ; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Eggeman AS; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K., Dryfe RAW; Department of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, U.K., Lewis DJ; Department of Materials, The University of Manchester, Manchester M13 9PL, U.K.
Jazyk:	angličtina
Zdroj:	Chemistry of materials : a publication of the American Chemical Society [Chem Mater] 2023 Sep 19; Vol. 35 (19), pp. 7904-7914. Date of Electronic Publication: 2023 Sep 19 (Print Publication: 2023).
DOI:	10.1021/acs.chemmater.3c00363
Abstrakt:	High entropy metal chalcogenides are materials containing five or more elements within a disordered sublattice. These materials exploit a high configurational entropy to stabilize their crystal structure and have recently become an area of significant interest for renewable energy applications such as electrocatalysis and thermoelectrics. Herein, we report the synthesis of bulk particulate HE zinc sulfide analogues containing four, five, and seven metals. This was achieved using a molecular precursor cocktail approach with both transition and main group metal dithiocarbamate complexes which are decomposed simultaneously in a rapid (1 h) and low-temperature (500 °C) thermolysis reaction to yield high entropy and entropy-stabilized metal sulfides. The resulting materials were characterized by powder XRD, SEM, and TEM, alongside EDX spectroscopy at both the micro- and nano-scales. The entropy-stabilized (CuAgZnCoMnInGa)S material was demonstrated to be an excellent electrocatalyst for the hydrogen evolution reaction when combined with conducting carbon black, achieving a low onset overpotential of (∼80 mV) and η 10 of (∼255 mV). Competing Interests: The authors declare no competing financial interest. (© 2023 The Authors. Published by American Chemical Society.)
Databáze:	MEDLINE
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