Journal
NANO LETTERS
Volume 11, Issue 10, Pages 4168-4175Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nl2020476
Keywords
Electrochemistry; catalysis; molybdenum sulfide; nanowires; hydrogen evolution
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Funding
- U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy [NFT-9-88567-01, DE-AC36-08GO28308]
- DOE-EPSCoR [DE-FG02-07ER46375]
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001060]
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We synthesize vertically oriented core-shell nanowires with substoichiometric MoO3 cores of similar to 20-50 nm and conformal MoS2 shells of similar to 2-5 nm. The core-shell architecture, produced by low-temperature sulfidization, is designed to utilize the best properties of each component material while mitigating their deficiencies. The substoichiometric MoO3 core provides a high aspect ratio foundation and enables facile charge transport, while the conformal MoS2 shell provides excellent catalytic activity and protection against corrosion in strong acids.
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