Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 263, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118352
Keywords
Heteroatom-doping; Coupling interaction; Carbon nanosheets; Mo-based nanocompounds; Hydrogen evolution reaction
Funding
- National Natural Science Foundation of China [21421001, 21573115, 21875118]
- Natural Science Foundation of Tianjin [19JCZDJC37700]
- 111 project [B12015]
- Ph.D. Candidate Research Innovation Fund of NKU School of Materials Science and Engineering
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Hierarchical nanostructure of intimately coupled transition metal nanoparticles/carbon-based materials can efficiently boost the electrochemical technologies because of the appealingly coupled interaction between different components and the strongly structural advantages. Herein, a facile and conventional strategy is developed to fabricate ultrafine Mo-based nanoparticles (MoP, Mo2C and MoS2) dispersed on hierarchically porous carbon nanosheets. The involved polymer-confinement pyrolysis process can not only efficiently alleviate the aggregation of Mo-based nanoparticles, but also in situ achieve different Mo-based components on various heteroatoms-doped carbon nanosheets without further post-modification. The hierarchical nanostructure and synergistic effect between carbon substrates and Mo-based nanoparticles enhance the electrochemical performance of the fabricated materials. For instance, the developed MoP@NPCS exhibits outstanding hydrogen evolution performance with high Faradaic efficiency in both acidic and alkaline electrolytes, being one of the impressive catalysts reported to date for hydrogen evolution reaction. This work would inspire the development of interacted carbon-metal functional materials for improving energy-related devices.
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