Engineering Spin States of Isolated Copper Species in a Metal–Organic Framework Improves Urea Electrosynthesis

Nano-Micro Letters

Article

Xi Wang¹  Yijun Yang¹  Yuhang Gao²  Chuang Zhang²  Jiannian Yao²  Jingnan Wang³  Jian Wang⁴ 

[1] Department of Physics, School of Physical Science and Engineering, Beijing Jiaotong University, 100044, Beijing, People’s Republic of China;Key Laboratory of Photochemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, People’s Republic of China;University of Chinese Academy of Sciences, 100049, Beijing, People’s Republic of China;Molecular Plus and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin University, 300072, Tianjin, People’s Republic of China;Research Center for Magnetic and Spintronic Materials National Institute for Materials Science, 305-0047, Tsukuba, Japan;

关键词: Electrocatalysis;    Urea synthesis;    Metal–organic framework;    Spin catalysis;    C–N coupling;   

DOI  :  10.1007/s40820-023-01127-0

 received in 2023-03-16, accepted in 2023-05-14,  发布年份 2023

来源: Springer

【 摘 要 】

tsThe single-atom Cu species with S = 0 spin ground state in CuIII-HHTP have been fabricated.The CuIII-HHTP exhibits remarkable performance with a high urea yield of 7.780 mmol h−1 g−1 with the corresponding Faradaic efficiency of 23.09% at − 0.6 V (vs. RHE).Low spin state and empty (dx2-y20\documentclass[12pt]{minimal}\usepackage{amsmath}\usepackage{wasysym}\usepackage{amsfonts}\usepackage{amssymb}\usepackage{amsbsy}\usepackage{mathrsfs}\usepackage{upgreek}\setlength{\oddsidemargin}{-69pt}\begin{document}$${d}_{{{\text{x}}^{2}\text{-y}}^{2}}^{0}$$\end{document}) orbitals are favorable to enhance the production urea of C–N coupling process.

【 授权许可】

CC BY   
© The Author(s) 2023

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