Atomically Dispersed Fe-Co Bimetallic Catalysts for the Promoted Electroreduction of Carbon Dioxide

作     者：Zhangsen Chen Gaixia Zhang Yuren Wen Ning Chen Weifeng Chen Tom Regier James Dynes Yi Zheng Shuhui Sun Zhangsen Chen;Gaixia Zhang;Yuren Wen;Ning Chen;Weifeng Chen;Tom Regier;James Dynes;Yi Zheng;Shuhui Sun

作者机构：Institut National de la Recherche Scientifique-Énergie Matériaux et TélécommunicationsVarennesQC J3X 1P7Canada School of Materials Science and EngineeringUniversity of Science and Technology100083 BeijingPeople’s Republic of China Canadian Light SourceUniversity of SaskatchewanSaskatoonSK S7N 2V3Canada Research Institute of PhotocatalysisState Key Laboratory of Photocatalysis on Energy and EnvironmentFuzhou UniversityFuzhou 350116People’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2期

页      面：79-93页

核心收录：

学科分类：081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 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：This work is supported financially by the Natural Sciences and Engineering Research Council of Canada(NSERC),the Fonds de Recherche du Québec-Nature et Technologies(FRQNT) Centre Québécois sur les Materiaux Fonctionnels(CQMF),the Canada Foundation for Innovation(CFI) Institut National de la Recherche Scientifique(INRS).The XAS characterizations were performed at the Canadian Light Source(CLS),which is financially supported by NSERC,CFI the University of Saskatchewan,the Government of Saskatchewan,Western Economic Diversification Canada,the National Research Council of Canada,and the Canadian Institutes of Health Research 

主　　题：CO_(2)reduction Electrocatalysis Syngas production Cobalt Iron Bimetallic catalysts 

摘      要：The electroreduction reaction of CO_(2)(ECO_(2)RR)requires high-performance catalysts to convert CO_(2)into useful *** metal-based atomically dispersed catalysts are promising for the high selectivity and activity in ECO_(2)*** work presents a series of atomically dispersed Co,Fe bimetallic catalysts by carbonizing the Fe-introduced Co-zeolitic-imidazolate-framework(C-Fe-Co-ZIF)for the syngas generation from ECO_(2)*** synergistic effect of the bimetallic catalyst promotes CO *** to the pure C-Co-ZiF,C-Fe-Co-ZIF facilitates CO production with a CO Faradaic efficiency(FE)boost of 10%,with optimal FE_(CO)of 51.9%,FE_(H_(2))of 42.4%at-0.55 V,and CO current density of 8.0 mA cm^(-2)at-0.7 V versus reversible hydrogen electrode(RHE).The H_(2)/CO ratio is tunable from 0.8 to 4.2 in a wide potential window of-0.35 to-0.8 V versus *** total FE_(CO+H_(2))maintains as high as 93%over 10 *** proper adding amount of Fe could increase the number of active sites and create mild distortions for the nanoscopic environments of Co and Fe,which is essential for the enhancement of the CO production in ECO_(2)*** positive impacts of Cu-Co and Ni-Co bimetallic catalysts demonstrate the versatility and potential application of the bimetallic strategy for ECO_(2)RR.