Fabrication of self-supported Cu3N electrode for electrocatalytic nitrogen reduction reaction

被引：2

作者：

He H.-Y. ^{[1
]}

Wang S. ^{[1
]}

Ji L.-L. ^{[1
]}

机构：

[1] School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou

来源：

Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | 2022年 / 50卷 / 04期

关键词：

Copper nitride; Electrocatalysis; N[!sub]2[!/sub] reduction reaction; Transition metal nitride;

D O I：

10.1016/S1872-5813(21)60152-4

中图分类号：

学科分类号：

摘要：

Electrocatalytic reduction of nitrogen (N2) to ammonia (NH3) by renewable energy-derived electricity provides a new route for sustainable development. But this process requires high-efficiency, high-selectivity and high-stability, inexpensive electrocatalysts. Owing to the unique electronic structure and catalytic mechanism, transition metal nitrides (TMNs) have been widely investigated as electrocatalysts for nitrogen reduction reaction (NRR) in recent years. However, to date, copper nitride-based materials are rarely reported for NRR. In this study, a three-dimensional self-supported copper nitride electrode (Cu3N/CF) was prepared by a simple one-step high-temperature nitridation of copper foam (CF). The structure and morphology of Cu3N/CF were systematically characterized and its NRR catalytic performance and stability were evaluated in neutral media. The results show that Cu3N/CF electrode achieves high ammonia generation rate (1.12 × 10−10 mol/(s·cm2) and faradaic efficiency (1.5%) at −0.2 V vs RHE in 0.1 mol/L Na2SO4. In addition, it also exhibits excellent electrocatalytic cycle stability and structural stability. Copyright ©2022 Editorial Dept. of Journal of Fuel Chemistry and Technology. All rights reserved.

引用

页码：484 / 493

页数：9

共 36 条

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