期刊
INORGANIC CHEMISTRY FRONTIERS
卷 8, 期 12, 页码 3105-3110出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d1qi00306b
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CuS-CPSs have emerged as efficient electrocatalysts for artificial NH3 production, showing excellent selectivity and stability, with the best performance achieved at -0.15 V vs. reversible hydrogen electrode.
Electrochemical N-2 reduction has emerged as an eco-friendly and sustainable alternative for industrial NH3 synthesis with the aid of efficient electrocatalysts under ambient conditions. Herein, we report that CuS concave polyhedral superstructures (CuS-CPSs) with high symmetry operate as capable electrocatalysts for artificial NH3 production with excellent selectivity. In 0.1 M HCl, CuS-CPSs achieve an appealing NH3 yield of 18.18 mu g h(-1) mg(cat.)(-1) and a faradaic efficiency of 5.63% at -0.15 V vs. reversible hydrogen electrode. Moreover, it also shows high electrochemical and structural stability. The catalytic mechanism of N-2 reduction on CuS (103) is further discussed using density functional theory calculations.
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