期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 3, 页码 2889-2893出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.8b05007
关键词
CeO2 Nanorod; Oxygen Vacancies; N-2 reduction reaction; Electrocatalysis; Ambien conditions
资金
- National Natural Science Foundation of China [21575137]
As a sustainable and environmentally friendly route, electrochemical N-2 reduction has been expected to replace the traditional N-2 fixation process of Haber-Bosch, which is energy-consuming and capital-intensive. In this work, we demonstrate that CeO2 nanorod with oxygen vacancies achieves a great enhancement for NRR with excellent selectivity and stability. Such electrocatalyst delivers NH3 yield of 16.4 mu g h(-1) mg(cat.)(-1) at -0.5 V vs reversible hydrogen electrode (RHE) and Faradaic efficiency of 3.7% at -0.4 V vs RHE using aqueous 0.1 M Na2SO4 electrolyte, higher than that of pristine CeO2 counterpart (5.4 mu g h(-1) mg(cat.)(-1); 2.1%).
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