Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 46, Issue 62, Pages 31598-31607Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2021.07.042
Keywords
Mo-chelate precursor; Mo2C NPs; Electrocatalyst; Hydrogen production
Categories
Funding
- National Natural Science Foundation of China [51572185]
- Natural Science Foundation of Shanxi Province [2014011016-4, 201801D221075]
- Key R&D program of Shanxi Province [201903D421079]
- Fund Program for the Scientific Activities of Selected Returned Overseas Professionals in Shanxi Province
- College Student Innovation Program of Shanxi [2017550, 2018081]
- National College Student Innovation and Entrepreneurship Training Program [201910112002, 202010112005]
- Shanxi Scholarship Council of China
Ask authors/readers for more resources
A noble metal-free electrocatalyst using well-dispersed and ultrasmall Mo2C nanoparticles anchored on 2D carbon nanosheets has been developed, showing outstanding activity and stability in hydrogen evolution reaction. This approach of synthesizing ultrafine Mo2C through designing chelate precursor could provide a reference for synthesizing other nanoparticles and hindering particle coalescence at high preparation temperature.
Production of hydrogen from electrochemical water splitting has been regarded as one of the most economic and sustainable techniques for green fuel production. It is significant and challengeable to develop highly efficient and low cost noble metal-free electrocatalysts. Presently, molybdenum-based electrocatalysts were regarded as potential alternatives for the hydrogen evolution reaction (HER). Here, the well-dispersed and ultrasmall Mo2C nanoparticles (NPs) anchored on 2D carbon nanosheets were synthesized by designing chelate precursor and following pyrolysis, which was proved to be an effective approach for preparing carbon-loaded Mo2C NPs. The as-obtained Mo2C/C material exhibits an outstanding activity and stability in hydrogen evolution reaction (HER). It needs an overpotential of 147 mV to drive 10 mA cm(-2) and Tafel slope is 64.2 mV dec(-1) in alkaline medium, implying that Mo2C/C material will be a potential noble metal-free electrocatalyst for HER. The design of Mo-chelate precursor is a feasible route to synthesize ultrafine Mo2C and it can provide a reference for synthesizing other nanoparticles and hindering particle coalescence at high preparation temperature. (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available