期刊
CHEMICAL COMMUNICATIONS
卷 58, 期 89, 页码 12503-12506出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cc02875a
关键词
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资金
- Natural Science Foundation of Henan Province [222300420407]
- National Natural Science Foundation of China [21701040, 21573056, 21771053]
The utilization of urea oxidation reaction can lower the voltage of hydrogen generation cell and eliminate urea pollution. In this study, MoC@C and Ni/WC@C nanoparticles were synthesized using an in situ trapping and pre-modification strategy. These materials were used as catalysts for hydrogen evolution reaction and UOR, respectively, and showed stable catalytic performance in an electrolytic cell.
Employing the urea oxidation reaction (UOR) instead of the water oxidation reaction can not only decrease the theoretic hydrogen generation cell voltage in sustainable energy conversion but also eliminate urea pollution in water. Herein, we used a facile in situ trapping and pre-modification strategy to synthesize MoC@C and hybrid Ni/WC@C nanoparticles and employed the two materials as hydrogen evolution reaction and UOR catalysts, respectively, in an electrolytic cell. The resultant setup can achieve a catalytic current density of 20 mA cm(-2) at a cell voltage of 1.5 V in alkaline solutions and maintain stability for at least 12 h in the same conditions.
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