Issue 42, 2023

In situ formed copper nanoparticles via strong electronic interaction with organic skeleton for pH-universal electrocatalytic CO2 reduction

Abstract

Electrochemical CO2 reduction reaction (CO2RR) has mainly been implemented in alkaline and neutral electrolytes. However, part of the input CO2 is consumed by the formation of carbonate, which leads to lower carbon utilization efficiency and significant energy losses. Acidic media can overcome these shortcomings but is less investigated since hydrogen evolution reaction (HER) is hitherto dominant and only few catalysts show excellent performance. Herein, we report an in situ formed novel organic/inorganic copper hybrid catalyst that originates from histidine-functionalized perylene diimide (HPH) coordinating with copper ions for CO2RR in acidic media. HPH contains two symmetrical imidazole, which has the ability to supply electrons to copper ions, creating electron-rich Cu at applied voltages. The spilled Cu0 forms a hybrid structure with the HPH ligand that exhibits pH-universal electrochemical CO2RR activity and FECO could reach approximately 70% in acidic, alkaline, and neutral electrolytes. In situ ATR-SEIRAS and XPS spectra indicate that the organic/inorganic copper hybrid catalyst formed by in situ reduction can be conducive to promote the activation of CO2 molecules and enhance the adsorption strength of the *COOH and *CO intermediates, especially in acidic media.

Graphical abstract: In situ formed copper nanoparticles via strong electronic interaction with organic skeleton for pH-universal electrocatalytic CO2 reduction

Supplementary files

Article information

Article type
Paper
Submitted
21 5 2023
Accepted
24 9 2023
First published
25 9 2023

J. Mater. Chem. A, 2023,11, 22992-23000

In situ formed copper nanoparticles via strong electronic interaction with organic skeleton for pH-universal electrocatalytic CO2 reduction

Y. Zhang, C. Zhang, D. Wang, J. Gui, J. Mao, Y. Lou, C. Pan and Y. Zhu, J. Mater. Chem. A, 2023, 11, 22992 DOI: 10.1039/D3TA03009A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements