Breaking the Scaling Relationship in C−N Coupling via the Doping Effects for Efficient Urea Electrosynthesis

• DOI: 10.1002/anie.202401943
• Publication Date: 2024-04-10T02:21:52Z
• Authors: Liyang Lv; Hao Tan; Yuan Kong; Bing Tang; Qianqian Ji; Yuying Liu; Chao Wang; Zechao Zhuang; Huijuan Wang; Min Ge; Minghui Fan; Dingsheng Wang; Wensheng Yan
• Keywords: Electrosynthesis

Abstract Electrochemical C−N coupling reaction based on carbon dioxide and nitrate have been emerged as a new “green synthetic strategy” for the synthesis of urea, but catalytic efficiency is seriously restricted by inherent scaling relations adsorption energies active sites, improvement activity frequently accompanied decrease in selectivity. Herein, doping engineering strategy was proposed to break relationship intermediate binding minimize kinetic barrier coupling. A thus designed SrCo 0.39 Ru 0.61 O 3−δ catalyst achieves urea yield rate 1522 μg h −1 mg cat. faradic 34.1 % at −0.7 V versus reversible hydrogen electrode. series characterizations revealed that Co not only induces lattice distortion also creates rich oxygen vacancies (O ) SrRuO 3 . The weaken *CO *NH 2 intermediates sites respectively, strain effects over Co−Ru dual promoting occurrence two monomers instead selective hydrogenating form by‐products. This work presents an insight into molecular reactions towards via