铜基电催化剂用于硝酸盐还原合成氨的展望,Advanced Energy and Sustainability Research

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铜基电催化剂用于硝酸盐还原合成氨的展望
Advanced Energy and Sustainability Research ( IF 6.2 ) Pub Date : 2023-11-14 , DOI: 10.1002/aesr.202300173
Mian Wei _{1,

2} , Sijun Li ₃ , Xunlu Wang ₄ , Guifu Zuo _{1,

2} , Hua Wang ₃ , Xianguang Meng _{1,

2} , Jiacheng Wang _{4,

5}

Affiliation

与哈伯-博世（H-B）合成氨工艺需要大量温室CO ₂排放和必要的苛刻反应条件相比，可再生能源驱动的常温常压电催化NO ₃^-还原（NO ₃ RR）合成氨工艺电力引起了人们的高度关注。NO ₃ RR也是利用工业和农业生产中产生的NO _x构建氮循环的有前景的途径。铜基催化剂是该反应最有前途的平台之一。这一视角展示了铜基电催化剂对NO _{3 RR的最新认识和研究进展。}_{通过对NO 3} RR限速步骤的深入分析，讨论了克服失活和提高铜基催化剂性能的策略。_{强调了NO x}_{和H协同活化对于促进Cu单原子、氧化物、双金属电催化NO 3} RR关键动力学步骤在含氮中间体和活性H可调吸附催化反应位点构建中的重要意义。此外，还提出了铜基催化剂催化硝酸盐还原偶联反应的未来挑战和前景。这一观点可以推动未来在先进的铜基电催化剂上电催化NO _{3 RR合成氨的研究。}

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A Perspective on Cu-Based Electrocatalysts for Nitrate Reduction for Ammonia Synthesis

Compared to the Haber–Bosch (H–B) process for ammonia synthesis with massive emission of greenhouse CO₂ and necessary harsh reaction conditions, the electrocatalytic NO₃⁻ reduction (NO₃RR) for ammonia synthesis under ambient temperature and pressure driven by renewable electricity has attracted great attention. NO₃RR is also a promising route to construct nitrogen cycles utilizing NO_x produced from industrial and agricultural operations. Cu-based catalyst is one of the most promising platforms for this reaction. This perspective shows the latest understanding and research advances on the NO₃RR by Cu-based electrocatalysts. Through a deep analysis on the rate-limiting step of NO₃RR, the strategies of overcoming the deactivation and enhancing the performance of Cu-based catalysts are discussed. The great significance of synergistic NO_x and H activation in promoting the key kinetic step of electrocatalytic NO₃RR by single-atom, oxide, bimetallic of Cu on the catalytic reaction site construction with tunable adsorption of N-containing intermediate and active H is stressed. Also, future challenges and perspectives toward coupling reaction of nitrate reduction catalyzed by Cu-based catalysts are proposed. This perspective can move forward the future research on electrocatalytic NO₃RR to ammonia synthesis over advanced Cu-based electrocatalysts.

更新日期：2023-11-14

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