期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 11, 页码 9800-9807出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b00197
关键词
Metal-organic frameworks; ZnxCo1-x MoS3 microboxes; Electrocatalysts; Hydrogen evolution reaction
资金
- National Natural Science Foundation of China [21661029, 21771157, 21663029]
- Key Laboratory Open Research Foundation of Xinjiang Autonomous Region [2016D03008]
The increasingly exhausted fossil energy reserve and the current serious ecological problems make people pay more attention to renewable clean energy sources such as hydrogen. Highly active, low-cost, and stable electrocatalysts are crucial for producing hydrogen through water electrolysis, and the development of them is an appealing but challenging task. Herein, MOFs-derived ZnxCo1-xMoS3 microboxes were successfully fabricated by a facile and general method. Water-soluble [(CH3)(2)NH2][M(HCOO)(3)] precursors reacted with a (NH4)(2)MoS4 water solution quickly to generate insoluble precipitates and, through subsequent annealing treatment, finally generated ZnxCo1-xMoS3 microboxes. Benefiting from the synergism of Zn-Co-Mo-S, the hollow cubic structure, and the incorporation of Zn and Co atoms, the Zn1/3Co2/3MoS3 exhibits superior HER performance in acidic media, with a low overpotential of 160 mV and a small Tafel slope of 85 mV dec(-1), as well as excellent durability. This general strategy can also be applied to fabricate other hollow molybdenum-based sulfides and MOFs-derived materials.
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