摘要
Electrochemical CO2 reduction to chemicals or fuels presents one of the most promising strategies for managing the global carbon balance, which yet poses a significant challenge due to lack of efficient and durable electrocatalyst as well as the understanding of the CO2 reduction reaction(CO2RR) mechanism.Benefiting from the large surface area, high electrical conductivity, and tunable structure, carbon-based metal-free materials(CMs) have been extensively studied as cost-effective electrocatalysts for CO2RR.The development of CMs with low cost, high activity and durability for CO2RR has been considered as one of the most active and competitive directions in electrochemistry and material science.In this review article,some up-to-date strategies in improving the CO2RR performance on CMs are summarized.Specifically, the approaches to optimize the adsorption of CO2RR intermediates, such as tuning the physical and electronic structure are introduced, which can enhance the electrocatalytic activity of CMs effectively.Finally, some design strategies are proposed to prepare CMs with high activity and selectivity for CO2RR.
Electrochemical CO2 reduction to chemicals or fuels presents one of the most promising strategies for managing the global carbon balance, which yet poses a significant challenge due to lack of efficient and durable electrocatalyst as well as the understanding of the CO2 reduction reaction（CO2RR） mechanism.Benefiting from the large surface area, high electrical conductivity, and tunable structure, carbon-based metal-free materials（CMs） have been extensively studied as cost-effective electrocatalysts for CO2RR.The development of CMs with low cost, high activity and durability for CO2RR has been considered as one of the most active and competitive directions in electrochemistry and material science.In this review article,some up-to-date strategies in improving the CO2RR performance on CMs are summarized.Specifically, the approaches to optimize the adsorption of CO2RR intermediates, such as tuning the physical and electronic structure are introduced, which can enhance the electrocatalytic activity of CMs effectively.Finally, some design strategies are proposed to prepare CMs with high activity and selectivity for CO2RR.
基金
supported by the National Key R&D Program of China (2016YFB0600902)
the Strategic Priority Research Program of the Chinese Academy of Sciences (XDB17000000)
Dalian National Laboratory for Clean Energy (DNL180401)
the Youth Innovation Promotion Association CAS
the Singapore Ministry of Education Academic Research Fund (AcRF) Tier 1: RG9/17, RG115/17, RG115/18 and Tier 2: MOE2016-T2-2-004
作者简介
Song Liu is now studying a Ph.D. degree in Dalian In stitute of Chemical Physics, Chinese Academy of Sciences (DICP, CAS). He received his B.S. degree in Chemistry from Jilin University in 2014. His research focuses on aqueous phase CO2 electrochemical reduction reaction;Hongbin Yang is a Professor at Suzhou University of Sci ence and Technology. He received B.S.(1998) at Lanzhou University and Ph.D.(2008) at Fudan University. His active research interests include electrocatalysis, photo- electrochemistry and carbon-based catalysts;Xiong Su is an Associate Professor at DICP. He received his B.S. from Dalian University of Technology (DLUT) in 2008 and PhD in industry catalysis from DICP, CAS in 2013. His research interests include CO2 and syngas con version;Jie Ding received his Master degree (2017) in Chemical Technology from Wuhan Institute of Technology. During 2017-2019, he worked as a joint assistant researcher un der the supervision of Prof. Yanqiang Huang at DICP, CAS. He is currently pursuing his Ph.D. at the Institute for Ad vanced Studies, Wuhan University. His research interest mainly focuses on small molecule activation for energy conversion applications;Qing Mao received his B.S.(2002) from DLUT and Ph.D.(2009) from DICP, CAS. Afterwards, he moved to Max Planck Institute for Dynamics of Complex Technical Sys tem and worked as a Humboldt postdoctoral researcher. He is now an Associate Professor at DLUT. His active re search interests include CO2 electrochemical reduction, fuel cells diagnosis and nonlinear spectroscopy analysis for electrode kinetics;Corresponding author:Yanqiang Huang is a Professor at DICP, CAS. He re ceived his B.S.(2002) from DLUT, and Ph.D.(2008) from DICE CAS. His active research interests include propellant catalytic decomposition, CO2 capture and utilization, C1 chemistry. E-mail addresses:yqhuang@dicp.ac.cn;Tao Zhang is a Chair Professor at DICP, CAS. He received his PhD in physical chemistry from DICP in 1989. He was the director of DICP from 2007 to 2017 and was selected as an Academician by the CAS in 2013. His main research interests are single-atom catalysis and biomass conversion;Corresponding author:Bin Liu received his B.Eng.(2002) and M.Eng.(2004) De grees in Chemical Engineering from the National University of Singapore and Ph.D. degree (2011) in Chemical En gineering from the University of Minnesota. After that, he moved to the University of California, Berkeley, and worked as a postdoctoral researcher in the Department of Chemistry during 2011-2012 before joining SCBE, NTU as an Assistant Professor in 2012. He is now an Associate Professor at NTU. His main research interests are electro catalysis, photovoltaics, and photo-electrochemistry. E-mail addresses:liubin@ntu.edu.sg.
