期刊
MATERIALS TODAY PHYSICS
卷 22, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.mtphys.2022.100609
关键词
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资金
- Natural Science Foundation of China [21603109]
- Henan Joint Fund of the National Natural Science Foundation of China [U1404216]
- Special Fund of Tianshui Normal University, China [CXJ2020-08]
- Shaanxi Provincial Educa-tion Department [20JK0676]
This article provides an up-to-date review of NRR catalysts, including experimental and theoretical works. The candidates are classified into metals, metal compounds, and metal-free catalysts, and the importance of descriptors and effective methods from pioneering works are highlighted.
Ammonia is a key industry raw material for fertilizers, chemicals, and energy. The Haber-Bosch process should be performed at high temperatures and pressures and may bring about air pollution. The electroreduction of N-2 (NRR) can be served as the alternative for the Haber-Bosch process due to the mild operation conditions. However, the low faradaic efficiency and NH3 yield rate still hinder the development of NRR. Thus, it is urgently needed to discover catalysts with high performance. Herein, we have provided an up-to-date review of NRR catalysts in both experimental and theoretical works. We have also classified the candidates into metals, metal compounds, and metal-free catalysts. Then, we highlighted the latest achievement of descriptor because it is valid guidance for quick screen of optimal catalysts. The descriptors are proposed mainly based on the N-2 activation process of NRR, which can be regulated via many strategies. We thus concluded the effective methods conducted in pioneering works finally. (C) 2022 Elsevier Ltd. All rights reserved.
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