Efficient CO_(2) electroreduction coupled with semi-dehydrogenation of tetrahydroisoquinoline by MOFs modified electrodes

作     者：Zi-Hao Zhu Ze-Long Liang Sheng-Li Hou Yao Xie Yue Ma Yan Zhang Bin Zhao Zi-Hao Zhu;Ze-Long Liang;Sheng-Li Hou;Yao Xie;Yue Ma;Yan Zhang;Bin Zhao

作者机构：College of ChemistryNankai UniversityTianjin 300071China 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2021年第30卷第12期

页      面：328-335,I0008页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：supported by the National Nature Science Foundation of China (21625103 and 21971125) the China Postdoctoral Science Foundation (2019M660978 and 2020T130319) the 111 Project (B12015) 

主　　题：MOFs Carbon dioxide electroreduction Electrocatalysis Semi-dehydrogenation Electrodeposition 

摘      要：Electroreduction of CO_(2) into formate catalyzed by metal-organic frameworks(MOFs) is a promising avenue to promote the carbon cycle,but the oxygen evolution reaction(OER) process in anode usually limited the reaction ***,a new framework {(Me_(2) NH_(2))[Bi(L)]·4 DMF·2 H_(2) O}_n(V12) was constructed and structurally characterized(L=5,5 -(1,3,6,8-tetraoxo-1,3,6,8-tetrahydrobenzo [lmn][3,8]phenanthroline-2,7-diyl) dibenzene-1,3-dicarboxylic acid;DMF=N,N-dimethylformamide).V12 possesses large one-dimensional channels with the size of 1.5 × 0.7 nm and exhibits good stability in common *** V12 was modified on electrode via electrodeposition,as-synthesized sample exhibits impressive catalytic performance for the transformation of CO_(2) into formate with Faraday efficiency of93.2% and current density of 11.78 mA cm^(-2) at-0.9 V(***).Control experiments revealed that the MOFs electrodeposition strategy significantly improves the charge transfer rate and introduces more structural defects,which promotes the reaction ***,tetra hydroisoquinoline is added as an accelerant in the anode to achieve the simultaneous generation of formate and *** importantly,the cell voltage is reduced from 2.79 to 2.52 V at 10 mA cm^(-2) in a two-electrode system due to more positive reaction *** work provides an enlightening strategy for using MOFs to establish an effective system to achieve CO_(2) reduction while obtaining high value-added oxidation products.