Ambient electrosynthesis of urea from carbon dioxide and nitrate over Mo2C nanosheet

扫码查看

原文链接

万方数据

外文摘要：Electrocatalytic synthesis of urea through C-N bond formation,converting carbon dioxide(CO2)and ni-trate(NO3-),presents a promising,less energy-intensive alternative to industrial urea production process.In this communication,we report the application of Mo2C nanosheets-decorated carbon sheets(Mo2C/C)as a highly efficient electrocatalyst for facilitating C-N coupling in ambient urea electrosynthesis.In CO2-saturated 0.2mol/L Na2SO4 solution containing 0.05mol/L NO3-,the Mo2C/C catalyst achieves an impres-sive urea yield of 579.13 μg h-1 mg-1 with high Faradaic efficiency of 44.80％at-0.5 V versus the reversible hydrogen electrode.Further theoretical calculations reveal that the multiple Mo active sites enhance the formation of*CO and*NH2 intermediates and facilitate their C-N coupling.This research propels the use of Mo2C-based electrodes in electrocatalysis and accentuates the capabilities of binary metal-based catalysts in C-N coupling reactions.

外文关键词：

Mo2CMultiple active sitesC-N couplingElectrocatalysisUrea synthesisDensity functional theory calculation

作者：

Yue Zhang、Xiaoya Fan、Xun He、Tingyu Yan、Yongchao Yao、Dongdong Zheng、Jingxiang Zhao、Qinghai Cai、Qian Liu、Luming Li、Wei Chu、Shengjun Sun、Xuping Sun

展开 >

作者单位：

College of Chemistry and Chemical Engineering,and Key Laboratory of Photonic and Electronic Bandgap Materials,Ministry of Education,Harbin Normal University,Harbin 150025,China

Institute of Fundamental and Frontier Sciences,University of Electronic Science and Technology of China,Chengdu 610054,China

Institute for Advanced Study,Chengdu University,Chengdu 610106 China

College of Chemistry,Chemical Engineering and Materials Science,Shandong Normal University,Jinan 250014,China

展开 >

出版年：

2024

DOI：

10.1016/j.cclet.2024.109806

中国化学快报(英文版)

中国化学会

中国化学快报(英文版)

CSTPCD

影响因子：0.771

ISSN：1001-8417

年,卷(期)：2024.35(8)