期刊
JOURNAL OF ENERGY CHEMISTRY
卷 44, 期 -, 页码 90-96出版社
ELSEVIER
DOI: 10.1016/j.jechem.2019.09.018
关键词
Metal-organic frameworks; Hydrogen evolution reaction; [Mo3S13](2-) clusters; Co9S8
资金
- National Science Fund for Distinguished Young Scholars [21825106]
- National Natural Science Foundation of China [21671175]
- Program for Science & Technology Innovation Talents in Universities of Henan Province [164100510005]
- Key Scientific Research Project Plan in Colleges and Universities of Henan Province [16A150045]
- Program for Innovative Research Team (in Science and Technology) in Universities of Henan Province [19IRTSTHN022]
Metal-organic framework (MOF) derived hybrid materials have been developed as an efficient non-noblemetal electrocatalysts for clean energy conversion systems. In this work, a Co-based MOF containing nitrogen and oxygen heteroatoms (Co-NOMOF) mixed with the thiomolybdate [Mo3S13](2-) nanoclusters was used to prepare the N, S, O-doped carbon encapsulating Co9S8 and MoS2 (Co9S8/MoS2@NSOC) nanocomposite by one-step pyrolysis. The Co9S8/MoS2@NSOC nanocomposite exhibited remarkable catalytic performance for hydrogen evolution reaction (HER) with overpotential of 194 and 233 mV in 1 M KOH and 0.5 M H2SO4 solution under 10 mA cm(-2), respectively, which was ascribed to the multiheteroatom-doped hierarchical porous carbon matrix and the synergistic effect of intrinsic activity of Co9S8 and MoS2. This work provides new opportunity for developing highly efficient non-precious metal electrochemical catalysts. (C) 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
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