期刊
INORGANIC CHEMISTRY
卷 56, 期 4, 页码 1988-1998出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.inorgchem.6b02586
关键词
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资金
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0015303]
- University of North Carolina at Chapel Hill
- Packard Fellowship for Science and Engineering
- Alfred P. Sloan Foundation
- National Science Foundation of the National Nanotechnology Coordinated Infrastructure (NNCI) [ECCS-1542015]
- U.S. Department of Energy (DOE) [DE-SC0015303] Funding Source: U.S. Department of Energy (DOE)
Analysis of a cobalt bis(dithiolate) complex reported to mediate hydrogen evolution under electrocatalytic conditions in acetonitrile revealed that the cobalt complex transforms into an electrode-adsorbed film upon addition of acid prior to application of a potential. Subsequent application of a reducing potential to the film results in desorption of the film and regeneration of the molecular cobalt complex in solution, suggesting that the adsorbed species is an intermediate in catalytic H-2 evolution. The electroanalytical techniques used to examine the pathway by which H-2 is generated, as well as the methods used to probe the electrode -adsorbed species, are discussed. Tentative mechanisms for catalytic H-2 evolution via an electrode-adsorbed intermediate are proposed.
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