Photocatalytic hydrogen production in a noble-metal-free system catalyzed by in situ grown molybdenum sulfide catalyst

Zong, Xu, Xing, Zheng, Yu, Hua, Bai, Yang, Lu, Gao Qing (Max) and Wang, Lianzhou (2014) Photocatalytic hydrogen production in a noble-metal-free system catalyzed by in situ grown molybdenum sulfide catalyst. Journal of Catalysis, 310 51-56. doi:10.1016/j.jcat.2013.04.006


Author Zong, Xu
Xing, Zheng
Yu, Hua
Bai, Yang
Lu, Gao Qing (Max)
Wang, Lianzhou
Title Photocatalytic hydrogen production in a noble-metal-free system catalyzed by in situ grown molybdenum sulfide catalyst
Journal name Journal of Catalysis   Check publisher's open access policy
ISSN 0021-9517
1090-2694
Publication date 2014-02-01
Year available 2013
Sub-type Article (original research)
DOI 10.1016/j.jcat.2013.04.006
Open Access Status
Volume 310
Start page 51
End page 56
Total pages 6
Place of publication Maryland Heights, MO, United States
Publisher Academic Press
Collection year 2014
Language eng
Abstract The establishment of cost-effective photocatalytic system based on earth-abundant materials is crucial for the practical utilizations of solar energy. To achieve this goal, it is highly desirable to employ photosensitizers and catalysts that are both derived from earth-abundant materials. Herein, we report an efficient noble-metal-free system by integrating the above two components. We found that functional MoSx nanoparticles can be obtained with an in situ photoreduction manner during photocatalytic reactions in the presence of inexpensive organic sensitizers. The thus-obtained MoS x catalysts demonstrated quite high efficiency for catalyzing H 2 evolution under visible light. The factors influencing the performance of the photocatalytic system was investigated and a two-step reaction mechanism was proposed. The concept of in situ formation of hydrogen evolution catalyst paves the way for investigating biomimetic molybdenum sulfide catalysts for photocatalytic H2 production in systems without the presence of noble metals.
Keyword Hydrogen production
Molybdenum sulfide
Photocatalysis
Water splitting
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Available online: 19 June 2013.

 
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