Journal
SCIENCE
Volume 335, Issue 6069, Pages 698-702Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.1215868
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Funding
- Department of Energy (DOE) Lawrence Berkeley National Laboratory Helios Solar Energy Research Center [51HE112B]
- Office of Science of the U.S. Department of Energy [DE-SC0004993]
- University of California [CCDC-798834]
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Inorganic solids are an important class of catalysts that often derive their activity from sparse active sites that are structurally distinct from the inactive bulk. Rationally optimizing activity is therefore beholden to the challenges in studying these active sites in molecular detail. Here, we report a molecule that mimics the structure of the proposed triangular active edge site fragments of molybdenum disulfide (MoS2), a widely used industrial catalyst that has shown promise as a low-cost alternative to platinum for electrocatalytic hydrogen production. By leveraging the robust coordination environment of a pentapyridyl ligand, we synthesized and structurally characterized a well-defined Mo-IV-disulfide complex that, upon electrochemical reduction, can catalytically generate hydrogen from acidic organic media as well as from acidic water.
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