Interfacial Proton Supply/Filtration Regulates the Dynamics of Electrocatalytic Nitrogen Reduction Reaction: A Perspective |
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Authors: | Yu Cheng Xinnan Xu Mengfan Wang Chengwei Deng Yi Sun Chenglin Yan Tao Qian |
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Affiliation: | 1. School of Chemistry and Chemical Engineering, Nantong University, Nantong, 226019 P. R. China;2. Key Laboratory of Core Technology of High Specific Energy Battery and Key Materials for Petroleum and Chemical Industry, College of Energy, Soochow University, Suzhou, 215006 P. R. China;3. Aerospace Hydrogen Energy Technology (Shanghai) Co. Ltd, Shanghai, 201800 P. R. China |
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Abstract: | As a promising energy carrier, ammonia synthesis by electrocatalytic nitrogen reduction reaction (eNRR) is a promising green and low-carbon ammonia synthesis strategy that can replace the traditional Haber–Bosch process. However, the development of eNRR processes is mainly severely constrained by competitive hydrogen evolution reaction (HER), and the corresponding strategies to inhibit this adverse side reaction to obtain high eNRR selectivity are still limited. In addition, for this complex reaction involving gas–liquid–solid three-phase interface and proton/electron transfer, it is great significance to analyze and summarize the existing inhibition HER strategies from the viewpoint of dynamics. In view of this, this work reviews proton supply/filtration regulation strategy in catalytic system, allowing a systematic survey of the literature focusing on interface membrane regulation (inorganic membrane and organic membrane), electrolyte regulation (metal-mediated strategy and electrolyte ion regulation strategy) and system device design (electrode structure design and electrolytic cell device design). Constructive catalytic system design guidance is also suggested to inhibit hydrogen evolution and improve NH3 selectivity, aiming for scalable and economically feasible applications. |
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Keywords: | device structure engineering electrochemical nitrogen reduction reaction electrolyte design engineering interface membrane engineering proton supply/filtration |
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