期刊
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
卷 45, 期 6, 页码 9638-9647出版社
WILEY
DOI: 10.1002/er.6385
关键词
electrocatalyst; hydrogen evolution reaction; metal‐ organic framework
资金
- Chung-Ang University Young Scientist Scholarship
- National Research Foundation of Korea [NRF-2017M3D1A1039379]
- National Research Foundation of Korea [4299990413951] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A facile strategy was developed to fabricate efficient catalysts by incorporating amorphous molybdenum sulfide (MoSx) and Ni-metal-organic framework (MOF)-74 via a solvothermal process, resulting in excellent hydrogen generation performance in acidic media. The stability of the catalyst was maintained for over 2000 cycles with a slight shift in performance, indicating that the MoSx/Ni-MOF-74 composite is a promising candidate for non-expensive catalysts for hydrogen production using the electrochemical method.
The development of low-cost and stable materials presents a challenging task for the electrocatalytic hydrogen evolution reaction (HER). In this work, we developed a facile strategy to fabricate efficient catalysts by incorporating amorphous molybdenum sulfide (MoSx) and Ni-metal-organic framework (MOF)-74 via a solvothermal process. Owing to the formation of NiMoS phases that decrease the hydrogen adsorption energy on the catalysts, the MoSx/Ni-MOF-74 based catalysts deliver excellent hydrogen generation performance in acidic media. In particular, an optimal MoSx/Ni-MOF-74 with an amount of 40 wt% MoSx exhibited the best HER performance with a low onset voltage of -114 mV and a small Tafel slope of 53.1 mV dec(-1). In addition, the stability of the catalyst was maintained for over 2000 cycles with a slight shift in performance. These results imply that the MoSx/Ni-MOF-74 composite is a promising candidate for the development of non-expensive catalysts for hydrogen production using the electrochemical method.
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