Crystallization of Amorphous Molybdenum Sulfide Induced by Electron or Laser Beam and Its Effect on H-2-Evolving Activities
- Title
- Crystallization of Amorphous Molybdenum Sulfide Induced by Electron or Laser Beam and Its Effect on H-2-Evolving Activities
- Author
- Tran, Phong Dinh
- Keywords
- HYDROGEN EVOLUTION REACTION; MOS2 ELECTROCATALYST; VISIBLE-LIGHT; CATALYST; GENERATION; PHOTOCATHODE; NANOCRYSTALS; SPECTROSCOPY; NANOSHEETS; DISULFIDE
- Issue Date
- 2016-09
- Publisher
- AMER CHEMICAL SOC
- Citation
- JOURNAL OF PHYSICAL CHEMISTRY C, v. 120, NO. 50, Page. 28789-28794
- Abstract
- We report herein investigation on crystallization of amorphous molybdenum sulfide a-MoSx induced by electron and laser beam resulting in formation of crystalline molybdenum disulfide c-MoS2. This crystallization occurred in situ during transmission electron microscopic and Raman analyses of a-MoSx material. It was also found that a-MoSx to c-MoS2 phase transformation was not fully beneficial for H-2-evolving catalytic performance. c-MoS2 showed better robustness but significantly lower catalytic performance. Furthermore, c-MoS2 was less tolerant to oxidation stress, as the one caused by photogenerated holes within the light harvester, compared with a-MoSx catalyst. Thus, a-MoSx is a better candidate for implementation within photocatalysts for overall solar water-splitting application.
- URI
- https://pubs.acs.org/doi/10.1021/acs.jpcc.6b08817https://repository.hanyang.ac.kr/handle/20.500.11754/76838
- ISSN
- 1932-7447
- DOI
- 10.1021/acs.jpcc.6b08817
- Appears in Collections:
- COLLEGE OF NATURAL SCIENCES[S](자연과학대학) > CHEMISTRY(화학과) > Articles
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