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Phosphorous-doped molybdenum disulfide anchored on silicon as an efficient catalyst for photoelectrochemical hydrogen generation

文献类型：期刊论文

作者Chen, Chih-Jung2; Veeramani, Vediyappan2; Wu, Yi-Hsiu3; Jena, Anirudha1,2,4; Yin, Li-Chang5; Chang, Ho1,4; Hu, Shu-Fen3; Liu, Ru-Shi1,2,4
刊名APPLIED CATALYSIS B-ENVIRONMENTAL
出版日期2020-04-01
卷号263页码:12
关键词Hydrogen evolution reaction Molybdenum disulfide Phosphorous atoms doping Exposed Mo-edges and S-vacancies Activated basal plane
ISSN号0926-3373
DOI10.1016/j.apcatb.2019.118259
通讯作者Yin, Li-Chang(lcyin@imr.ac.cn) ; Chang, Ho(f10381@ntut.edu.tw) ; Hu, Shu-Fen(sfhu.hu@ntim.edu.tw) ; Liu, Ru-Shi(rsliu@ntu.edu.tw)
英文摘要Herein, molybdenum disulfide (MoS2) integrated on Si pyramids was used as a co-catalyst to improve charge separation efficiency. Various quantities of phosphorus (P) heteroatoms were doped into MoS2 materials to boost catalytic performance. Raman and extended X-ray absorption fine structure spectra showed that the introduction of P dopants increased the number of exposed edges and sulfur vacancies that acted as hydrogen evolution reaction (HER) active sites on MoS2 and enhanced photoelectrochemical activity. Density functional theory calculations revealed that the HER inert basal plane of MoS2 became catalytically active after P atoms doping. MoS1.75P0.25/Si pyramids presented the optimal onset potential of +0.29 V (vs. RHE) and current density -23.8 mA cm(-2). A titanium dioxide (TiO2) layer was prepared through atomic layer deposition and served as a passivation layer that improved photocathode stability. The photocurrent retention of MoS1.75P0.25/10 nm TiO2/Si pyramids was 84.0% after 2 h of chronoamperometric measurement.
资助项目Ministry of Science and Technology[MOST 106-2112-M-003-007-MY3] ; Ministry of Science and Technology[MOST 107-2113-M-002-008-MY3] ; National Natural Science Fundation of China (NSFC)[51472249] ; National Natural Science Fundation of China (NSFC)[51972312]
WOS研究方向Chemistry ; Engineering
语种英语
WOS记录号WOS:000510526000003
出版者ELSEVIER
资助机构Ministry of Science and Technology ; National Natural Science Fundation of China (NSFC)
源URL[http://ir.imr.ac.cn/handle/321006/137177]  
专题金属研究所_中国科学院金属研究所
通讯作者Yin, Li-Chang; Chang, Ho; Hu, Shu-Fen; Liu, Ru-Shi
作者单位1.Natl Taipei Univ Technol, Grad Inst Mfg Technol, Taipei 10608, Taiwan
2.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan
3.Natl Taiwan Normal Univ, Dept Phys, Taipei 11677, Taiwan
4.Natl Taipei Univ Technol, Dept Mech Engn, Taipei 10608, Taiwan
5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Chih-Jung,Veeramani, Vediyappan,Wu, Yi-Hsiu,et al. Phosphorous-doped molybdenum disulfide anchored on silicon as an efficient catalyst for photoelectrochemical hydrogen generation[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,263:12.
APA Chen, Chih-Jung.,Veeramani, Vediyappan.,Wu, Yi-Hsiu.,Jena, Anirudha.,Yin, Li-Chang.,...&Liu, Ru-Shi.(2020).Phosphorous-doped molybdenum disulfide anchored on silicon as an efficient catalyst for photoelectrochemical hydrogen generation.APPLIED CATALYSIS B-ENVIRONMENTAL,263,12.
MLA Chen, Chih-Jung,et al."Phosphorous-doped molybdenum disulfide anchored on silicon as an efficient catalyst for photoelectrochemical hydrogen generation".APPLIED CATALYSIS B-ENVIRONMENTAL 263(2020):12.

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来源：金属研究所

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