期刊
NANOMATERIALS
卷 11, 期 12, 页码 -出版社
MDPI
DOI: 10.3390/nano11123273
关键词
1T-MoS2 nanosheets; N-doped carbon nanotubes; hydrogen evolution reaction; water splitting; synergy effects
类别
资金
- Natural Science Foundation of Qinghai Province [2019-ZJ-945Q]
- National Natural Science Foundation of China [22165023, 51902171]
- Thousand Talents Program of Qinghai Province
This study anchored 1T-phase molybdenum disulfide nanosheets on N-doped carbon nanotubes using a simple hydrothermal process, creating a high-performance catalyst for the hydrogen evolution reaction. The structure has highly exposed active sites, promotes electron transfer, and exhibits excellent stability, proposing a new design strategy for high-performance HER catalysts.
1T-phase molybdenum disulfide is supposed to be one of the non-precious metal-based electrocatalysts for the hydrogen evolution reaction with the highest potential. Herein, 1T-MoS2 nanosheets were anchored on N-doped carbon nanotubes by a simple hydrothermal process with the assistance of urea promotion transition of the 1T phase. Based on the 1T-MoS2 nanosheets anchored on the N-doped carbon nanotubes structures, 1T-MoS2 nanosheets can be said to have highly exposed active sites from edges and the basal plane, and the dopant N in carbon nanotubes can promote electron transfer between N-doped carbon nanotubes and 1T-MoS2 nanosheets. With the synergistic effects of this structure, the excellent 1T-MoS2/ N-doped carbon nanotubes catalyst has a small overpotential of 150 mV at 10 mA cm(-2), a relatively low Tafel slope of 63 mV dec(-1), and superior stability. This work proposes a new strategy to design high-performance hydrogen evolution reaction catalysts.
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