Hetero‑Interfaces on Cu Electrode for Enhanced Electrochemical Conversion of CO_(2)to Multi‑Carbon Products

作     者：Xiaotong Li Jianghao Wang Xiangzhou Lv Yue Yang Yifei Xu Qian Liu Hao Bin Wu Xiaotong Li;Jianghao Wang;Xiangzhou Lv;Yue Yang;Yifei Xu;Qian Liu;Hao Bin Wu

作者机构：Institute for Composites Science Innovation(InCSI)and State Key Laboratory of Silicon MaterialsSchool of Materials Science and EngineeringZhejiang UniversityHangzhou 310027People’s Republic of China 

出 版 物：《Nano-Micro Letters》 (纳微快报（英文版）)

年 卷 期：2022年第14卷第8期

页      面：181-193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）] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：the funding support from Natural Science Foundation of Zhejiang Province (Grant No. LR21E020003) National Natural Science Foundation of China (Grant No. 22005266) “the Fundamental Research Funds for the Central Universities” (2021FZZX001-09) 

主　　题：CO_(2)reduction reaction Metal–organic frameworks Copper Hetero-interfaces Multi-carbon products 

摘      要：Electrochemical CO_(2)reduction reaction(CO_(2)RR)to multi-carbon products would simultaneously reduce CO_(2)emission and produce high-value chemicals.Herein,we report Cu electrodes modified by metal–organic framework(MOF)exhibiting enhanced electrocatalytic performance to convert CO_(2) into ethylene and ethanol.The Zr-based MOF,UiO-66 would in situ transform into amorphous ZrOx nanoparticles(a-ZrO_(x)),constructing a-ZrOx/Cu hetero-interface as a dual-site catalyst.The Faradaic efficiency of multi-carbon(C2+)products for optimal UiO-66-coated Cu(0.5-UiO/Cu)electrode reaches a high value of 74%at−1.05 V versus RHE.The intrinsic activity for C2+products on 0.5-UiO/Cu electrode is about two times higher than that of Cu foil.In situ surface-enhanced Raman spectra demonstrate that UiO-66-derived a-ZrO_(x)coating can promote the stabilization of atop-bound CO^(*)intermediates on Cu surface during CO_(2)electrolysis,leading to increased CO^(*)coverage and facilitating the C–C coupling process.The present study gives new insights into tailoring the adsorption configurations of CO_(2)RR intermediate by designing dual-site electrocatalysts with hetero-interfaces.