Issue 16, 2024

Efficient electrochemical reduction of CO2 to CO in a flow cell device by a pristine Cu5tz6-cluster-based metal–organic framework

Abstract

The electrochemical reduction of CO2 to CO is a powerful approach to achieving carbon neutrality. Herein, we report a five-nuclear copper cluster-based metal–azolate framework CuTz-1 as an electrocatalyst for the electrochemical CO2 reduction reaction. It achieved a faradaic efficiency (FE) of 62.7% for yielding CO with a partial current density of −35.1 mA cm−2 in flow cell device, which can be preserved for more than ten hours with negligible changes of the current density and FE(CO). Studies of electrocatalytic mechanism studies revealed that the distance of Cu–N was increased, and the coordination number of the Cu ion was reduced, while the oxidation state of Cu was decreased after the electrocatalysis. These findings offer valuable insights into structural changes that influence the performance of the catalyst during the process of the electrochemical reduction of CO2 process.

Graphical abstract: Efficient electrochemical reduction of CO2 to CO in a flow cell device by a pristine Cu5tz6-cluster-based metal–organic framework

Supplementary files

Article information

Article type
Paper
Submitted
21 Jan 2024
Accepted
20 Mar 2024
First published
21 Mar 2024

Dalton Trans., 2024,53, 7067-7072

Efficient electrochemical reduction of CO2 to CO in a flow cell device by a pristine Cu5tz6-cluster-based metal–organic framework

Z. Li, Y. Lv, H. Huang, Z. Li, T. Li, L. Zhang and J. Wang, Dalton Trans., 2024, 53, 7067 DOI: 10.1039/D4DT00189C

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