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MoS 2 @HKUST‐1 Flower‐Like Nanohybrids for Efficient Hydrogen Evolution Reactions
Author(s) -
Wang Chengli,
Su Yingchun,
Zhao Xiaole,
Tong Shanshan,
Han Xiaojun
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201704080
Subject(s) - tafel equation , materials science , fourier transform infrared spectroscopy , scanning electron microscope , chemical engineering , electrochemistry , noble metal , nanotechnology , catalysis , metal , hydrogen , faraday efficiency , chemistry , electrode , composite material , metallurgy , organic chemistry , engineering
Abstract A novel MoS 2 ‐based flower‐like nanohybrid for hydrogen evolution was fabricated through coating the Cu‐containing metal‐organic framework (HKUST‐1) onto MoS 2 nanosheets. It is the first time that MoS 2 @HKUST‐1 nanohybrids have been reported for the enhanced electrochemical performance of HER. The morphologies and components of the MoS 2 @HKUST‐1 flower‐like nanohybrids were characterized by scanning electron microscopy, X‐ray diffraction analysis and Fourier transform infrared spectroscopy. Compared with pure MoS 2 , the MoS 2 @HKUST‐1 hybrids exhibit enhanced performance on hydrogen evolution reaction with an onset potential of −99 mV, a smaller Tafel slope of 69 mV dec −1 , and a Faradaic efficiency of nearly 100 %. The MoS 2 @HKUST‐1 flower‐like nanohybrids exhibit excellent stability in acidic media. This design opens new possibilities to effectively synthesize non‐noble metal catalysts with high performance for the hydrogen evolution reaction (HER).