Skip to main content
placeholder image

Residual Chlorine Induced Cationic Active Species on a Porous Copper Electrocatalyst for Highly Stable Electrochemical CO2 Reduction to C2+

Journal Article


Abstract


  • Electrochemical carbon dioxide (CO2) reduction reaction (CO2RR) is an attractive approach to deal with the emission of CO2 and to produce valuable fuels and chemicals in a carbon-neutral way. Many efforts have been devoted to boost the activity and selectivity of high-value multicarbon products (C2+) on Cu-based electrocatalysts. However, Cu-based CO2RR electrocatalysts suffer from poor catalytic stability mainly due to the structural degradation and loss of active species under CO2RR condition. To date, most reported Cu-based electrocatalysts present stabilities over dozens of hours, which limits the advance of Cu-based electrocatalysts for CO2RR. Herein, a porous chlorine-doped Cu electrocatalyst exhibits high C2+ Faradaic efficiency (FE) of 53.8 % at −1.00 V versus reversible hydrogen electrode (VRHE). Importantly, the catalyst exhibited an outstanding catalytic stability in long-term electrocatalysis over 240 h. Experimental results show that the chlorine-induced stable cationic Cu0/Cu+ species and the well-preserved structure with abundant active sites are critical to the high FE of C2+ in the long-term run of electrochemical CO2 reduction.

Publication Date


  • 2021

Citation


  • Li, M., Ma, Y., Chen, J., Lawrence, R., Luo, W., Sacchi, M., . . . Yang, J. (2021). Residual Chlorine Induced Cationic Active Species on a Porous Copper Electrocatalyst for Highly Stable Electrochemical CO2 Reduction to C2+. Angewandte Chemie - International Edition, 60(20), 11487-11493. doi:10.1002/anie.202102606

Scopus Eid


  • 2-s2.0-85104043681

Web Of Science Accession Number


Start Page


  • 11487

End Page


  • 11493

Volume


  • 60

Issue


  • 20

Abstract


  • Electrochemical carbon dioxide (CO2) reduction reaction (CO2RR) is an attractive approach to deal with the emission of CO2 and to produce valuable fuels and chemicals in a carbon-neutral way. Many efforts have been devoted to boost the activity and selectivity of high-value multicarbon products (C2+) on Cu-based electrocatalysts. However, Cu-based CO2RR electrocatalysts suffer from poor catalytic stability mainly due to the structural degradation and loss of active species under CO2RR condition. To date, most reported Cu-based electrocatalysts present stabilities over dozens of hours, which limits the advance of Cu-based electrocatalysts for CO2RR. Herein, a porous chlorine-doped Cu electrocatalyst exhibits high C2+ Faradaic efficiency (FE) of 53.8 % at −1.00 V versus reversible hydrogen electrode (VRHE). Importantly, the catalyst exhibited an outstanding catalytic stability in long-term electrocatalysis over 240 h. Experimental results show that the chlorine-induced stable cationic Cu0/Cu+ species and the well-preserved structure with abundant active sites are critical to the high FE of C2+ in the long-term run of electrochemical CO2 reduction.

Publication Date


  • 2021

Citation


  • Li, M., Ma, Y., Chen, J., Lawrence, R., Luo, W., Sacchi, M., . . . Yang, J. (2021). Residual Chlorine Induced Cationic Active Species on a Porous Copper Electrocatalyst for Highly Stable Electrochemical CO2 Reduction to C2+. Angewandte Chemie - International Edition, 60(20), 11487-11493. doi:10.1002/anie.202102606

Scopus Eid


  • 2-s2.0-85104043681

Web Of Science Accession Number


Start Page


  • 11487

End Page


  • 11493

Volume


  • 60

Issue


  • 20