摘要
The electrochemical CO_(2) reduction reaction(CO_(2)RR)offers a green and sustainable process to convert CO_(2) into valuable chemical stocks and fuels.Metal is one of the most promising types of catalysts to drive an efficient and selective CO_(2)RR.The catalytic performance of metal nanocatalysts is strongly dependent on their structural features.Recently,phase engineering of nanomaterials(PEN)has emerged as a prominent tactic to regulate the catalytic performance of metal nanocatalysts for the CO_(2)RR.A broad range of metal nanocatalysts with conventional and unconventional crystal phases has been developed,and remarkable achievements have been made.This review summarizes the most recent developments in phase engineering of metal nanocatalysts for the electrochemical CO_(2)RR.We first introduce the different crystal phases of metal nanocatalysts used in the CO_(2)RR and then discuss various synthetic strategies for unconventional phases of metal nanocatalysts.After that,detailed discussions of metal nanocatalysts with conventional and unconventional phases,including amorphous phases,are presented.Finally,the challenges and perspectives in this emerging area are discussed.
基金
support from the Start-up Fund(BDC2)and Research Institute for Advanced Manufacturing(RIAM)Fund(CD4D)from the Hong Kong Polytechnic University.Y.C.thanks the support from Start-up Fund(Project No.4930977)
the Direct Grant for Research(Project No.4053444)from the Chinese University of Hong Kong
H.Z.thanks the support from ITC via the Hong Kong Branch of National Precious Metals Material Engineering Research Center(NPMM),the Research Grants Council of Hong Kong(GRF Project No.11301721)
the Start-Up Grant(Project No.9380100)
the grants(Project Nos.7020054,9678272,and 1886921)from the City University of Hong Kong
the Science Technology and Innovation Committee of Shenzhen Municipality(“Preparation of single atoms on transition metal chalcogenides for electrolytic hydrogen evolution”,CityU),and the Project 52131301 supported by NSFC.
