文献类型：期刊文献

中文题名：Phthalocyanine-derived catalysts decorated by metallic nanoclusters for enhanced CO_(2)electroreduction

作者：Jiacheng Chen[1];Jiayu Li[1];Jing Xu[1];Minghui Zhu[1];Yi-Fan Han[1]

机构：[1]State Key Laboratory of Chemical Engineering,School of Chemical Engineering,East China University of Science and Technology,Shanghai,200237,China

年份：2023

卷号：8

期号：2

起止页码：444

中文期刊名：Green Energy & Environment

外文期刊名：绿色能源与环境（英文版）

收录：CSTPCD;;Scopus;CSCD:【CSCD2023_2024】；

基金：sponsored by the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning and Shanghai Sailing Program(19YF1410600)。

语种：英文

中文关键词：Carbon dioxide;Electroreduction;Hybrid catalyst;Nickel-based catalysts;Mechanism

摘要：Electrochemical CO_(2)reduction(CO_(2)RR)over molecular catalysts is a paramount approach for CO_(2)conversion to CO.Herein,we report a novel phthalocyanine-derived catalyst synthesized by a two-step method with a much improved electroconductivity.Furthermore,the catalyst contains both Ni-N4sites and highly dispersed metallic Ni nanoclusters,leading to an increased CO_(2)RR currents by two folds.Isotope labelling study and in situ spectroscopic analysis demonstrate that the existence of metallic Ni nanoclusters is the key factor for the activity enhancement and can shift the CO_(2)RR mechanism from being electron transfer(ET)-limited(forming*COO^(-))to concerted proton-electron transfer(CPET)-limited(forming CO).