Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 28, Pages 10286-10289Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja404851s
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Funding
- NSF [EPS 1003907]
- West Virginia University Research Corporation
- NASA-WV Space Grant Consortium
- NSF Graduate Research Fellowship [1102689]
- Direct For Education and Human Resources [1102689] Funding Source: National Science Foundation
- Division Of Graduate Education [1102689] Funding Source: National Science Foundation
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Molybdenum disulfide (MoS2) is a promising candidate for solar hydrogen generation but it alone has negligible photocatalytic activity. In this work, 5-20 nin sized p-type MoS2 nanoplatelets are deposited on the n-type nitrogen-doped reduced graphene oxide (n-rGO) nanosheets to form multiple nanoscale p-n junctions in each rGO nanosheet The p-MoS2/n-rGO heterostructure shows significant photocatalytic activity toward the hydrogen evolution reaction (HER) in the wavelength range from the ultraviolet light through the near-infrared light. The photoelectrochemical measurement shows that the p-MoS2/n-rGO junction greatly enhances the charge generation and suppresses the charge recombination, which is responsible for enhancement of solar hydrogen generation. The p-MoS2/n-rGO is an earth-abundant and environmentally benign photocatalyst for solar hydrogen generation.
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