Tomboc, Gracita M. Choi, Songa Kwon, Taehyun Hwang, Yun Jeong Lee, Kwangyeol 2024-01-19T18:00:29Z 2024-01-19T18:00:29Z 2021-09-05 2020-04 0935-9648 https://pubs.kist.re.kr/handle/201004/118787 Electrochemical reduction of carbon dioxide (CO2RR) product distribution has been identified to be dependent on various surface factors, including the Cu facet, morphology, chemical states, doping, etc., which can alter the binding strength of key intermediates such as *CO and *OCCO during reduction. Therefore, in-depth knowledge of the Cu catalyst surface and identification of the active species under reaction conditions aid in designing efficient Cu-based electrocatalysts. This progress report categorizes various Cu-based electrocatalysts into four main groups, namely metallic Cu, Cu alloys, Cu compounds (Cu + non-metal), and supported Cu-based catalysts (Cu supported by carbon, metal oxides, or polymers). The detailed mechanisms for the selective CO2RR are presented, followed by recent relevant developments on the synthetic procedures for preparing Cu and Cu-based nanoparticles. Herein, the potential link between the Cu surface and CO2RR performance is highlighted, especially in terms of the chemical states, but other significant factors such as defective sites and roughened morphology of catalysts are equally considered during the discussion of current studies of CO2RR with Cu-based electrocatalysts to fully understand the origin of the significant enhancement toward C-2 formation. This report concludes by providing suggestions for future designs of highly selective and stable Cu-based electrocatalysts for CO2RR. English WILEY-V C H VERLAG GMBH EFFICIENT ELECTROCHEMICAL REDUCTION REDUCED GRAPHENE OXIDE CARBON-DIOXIDE STABLE ELECTROREDUCTION THEORETICAL INSIGHTS PRODUCT SELECTIVITY COPPER NANOCRYSTALS C2 PRODUCTS NANOPARTICLES NITROGEN Potential Link between Cu Surface and Selective CO2 Electroreduction: Perspective on Future Electrocatalyst Designs Article 10.1002/adma.201908398 1 ADVANCED MATERIALS, v.32, no.17 ADVANCED MATERIALS 32 17 scie scopus 000519007400001 2-s2.0-85081324282 Chemistry, Multidisciplinary Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article EFFICIENT ELECTROCHEMICAL REDUCTION REDUCED GRAPHENE OXIDE CARBON-DIOXIDE STABLE ELECTROREDUCTION THEORETICAL INSIGHTS PRODUCT SELECTIVITY COPPER NANOCRYSTALS C2 PRODUCTS NANOPARTICLES NITROGEN catalyst surfaces CO2 electroreduction copper oxidation states selectivity