电化学
催化作用
化学
固氮
过渡金属
氧化还原
Boosting(机器学习)
氢
材料科学
纳米技术
作者
Laiquan Li,Cheng Tang,Huanyu Jin,Kenneth Davey,Shi-Zhang Qiao
出处
期刊:Chem
[Elsevier]
日期:2021-11-09
卷期号:7 (12): 3232-3255
被引量:24
标识
DOI:10.1016/j.chempr.2021.10.008
摘要
Summary
Renewable-energy-derived electrocatalytic nitrogen (N2) reduction reaction (NRR) is practically promising for the production of green ammonia (NH3). However, NRR is limited by low faradic efficiency and NH3 yield because of a high-energy barrier for N2 activation and competing hydrogen evolution reaction (HER). In contrast to widely investigated transition metals, main-group elements (MGEs) with manifold physicochemical properties and intrinsically poor hydrogen adsorption ability could provide superiority to address the challenges mentioned earlier. In this review, we (1) critically assess the use of MGEs in NRR by identifying the functional mechanism of boosting NRR and suppressing HER, (2) present a comprehensive summary of methodologies for N2 activation and HER suppression that are generalizable to advanced catalysts for N2 fixation, and (3) show MGEs-based mechanisms that can be judiciously applied for smart design of materials, electrolytes, and interface for electrocatalytic N2 reduction. We conclude that MGEs can significantly boost electrochemical N2 fixation.
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