期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 8, 期 37, 页码 13908-13914出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.0c05764
关键词
Electrochemical dinitrogen reduction; Rare-earth catalysts; Sm2O3; NH3 yield; N-2 activation
资金
- Feitian Scholar Program of Gansu Province
- CAS Light of West China Program
- Foundation of A Hundred Youth Talents Training Program of Lanzhou Jiaotong University
A new rare-earth Sm2O3 electrocatalyst was explored for an electrochemical dinitrogen reduction reaction (NRR). Theoretical calculations reveal that the surface-exposed Sm atoms of Sm2O3 could effectively catalyze the NRR and restrict hydrogen evolution. Experimentally, we prepared Sm2O3 nanoparticles showing an NH3 yield of 27.2 mu g h(-1) mg(-1) and a Faradaic efficiency of 11.5% at -0.6 V in 0.1 M Na2SO4, together with outstanding stability, thereby implying the potential of Sm2O3 and other rare-earth electrocatalysts for N-2 electroreduction.
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