期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 1, 页码 60-64出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.6b14393
关键词
hydrogen evolution; electrocatalyst; Ni3C; carbon network; composites
资金
- Natural Science Foundation of China [U1401248]
- 973 Program - the National Basic Research Program of China Special Funds for the Chief Young Scientist [2015CB358600]
- National Natural Science Foundation of China [21422103]
In this letter, we report a facile self-foaming strategy to synthesize Ni3C nanoparticles embedded in a porous carbon network (Ni3C@PCN) by rationally incorporating a nickel salt precursor into the carbon source. As a novel hydrogen evolution reaction (HER) catalyst, the Ni3C@PCN shows superior catalytic activity with an onset potential of -65 mV, an overpotential of 262 mV to achieve 50 mA cm(-2) current density, a Tafel slope of 63.4 mV/dec, and durability over 12 h in acidic media. The excellent performance of the novel 3D composite material along with its low-cost merits is suggestive of great potential for scalable electrocatalytic H-2 production.
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