CuO/Co3O4 Bifunctional Catalysts for Electrocatalytic 5-Hydroxymethylfurfural Oxidation Coupled Cathodic Ammonia Production

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：The electrochemical coupling of biomass oxidation and nitrogen conversion presents a potential strategy for high value-added chemicals and nitrogen cycling.Herein,in this work,CuO/Co3O4 with heterogeneous interface is successfully constructed as a bifunctional catalyst for the electrooxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and the electroreduction of nitrate to ammonia(NH3).The open-circuit potential spontaneous experiment shows that more 5-hydroxymethylfurfural molecules are adsorbed in the Helmholtz layer of the CuO/Co3O4 composite,which certifies that the CuO/Co3O4 heterostructure is conducive to the kinetic adsorption of 5-hydroxymethylfurfural.In situ electrochemical impedance spectroscopy further shows that CuO/Co3O4 has faster reaction kinetics and lower reaction potential in oxygen evolution reaction and 5-hydroxymethylfurfural electrocatalytic oxidation.Moreover,CuO/Co3O4 also has a good reduction effect on NO3.The ex-situ Raman spectroscopy shows that under the reduction potential,the metal oxide is reduced,and the generated Cu2O can be used as a new active site for the reaction to promote the electrocatalytic conversion of NO3 to NH3 synthesis.This work provides valuable guidance for the synthesis of value-added chemicals by 5-hydroxymethylfurfural electrocatalytic oxidation coupled with NO3 while efficiently producing NH3.

外文关键词：

5-hydroxymethylfurfural oxidationammonia productionbifunctional catalystCuO/Co3O4electrocatalyst

作者：

Li Zhang、Peiyue Jin、Ze Wu、Bo Zhou、Junchang Jiang、Aomeng Deng、Qiuyue Li、Tanveer Hussain、Yiqiong Zhang、Hanwen Liu、Shuangyin Wang

展开 >

作者单位：

College of Materials Science and Engineering,Changsha University of Science and Technology,Changsha 410114,China

School of Chemical Engineering,Xiangtan University,Xiangtan 411105,China

State Key Laboratory of Chemo/Bio-Sensing and Chemometrics,College of Chemistry and Chemical Engineering,Hunan University,Changsha 410082,China

School of Science and Technology,University of New England,Armidale,NSW 2351,Australia

WA School of Mines,Minerals,Energy and Chemical Engineering(WASM-MECE),Curtin University,Perth,WA 6102,Australia

展开 >

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNatural Science Foundation of Hunan ProvinceNatural Science Foundation of Hunan ProvinceScientific Research Project of Hunan Provincial Department of Education

项目编号：

2237201222261160640220020092023JJ200372021JJ4056522B0293

出版年：

2024

DOI：

10.1002/eem2.12725

能源与环境材料(英文)

ISSN：

年,卷(期)：2024.7(5)