Issue 24, 2024

Advances in MXene surface functionalization modification strategies for CO2 reduction

Abstract

MXenes, 2D transition metal carbides and nitrides, show great potential in electrocatalytic CO2 reduction reaction (ECO2RR) applications owing to their tunable structure, abundant surface functional groups, large specific surface area and remarkable conductivity. However, the ECO2RR has a complex pathway involving various reaction intermediates. The reaction process yields various products alongside a competitive electrolytic water-splitting reaction. These factors limit the application of MXenes in ECO2RRs. Therefore, this review begins by examining the functionalized modification of MXenes to enhance their catalytic activity and stability via the regulation of interactions between carriers and the catalytic centre. The review firstly covers the synthesis methods and characterisation techniques for functionalized MXenes reported in recent years. Secondly, it presents the methods applied for the functionalized modification of carriers through surface loading of single atoms, clusters, and nanoparticles and construction of composites. These methods regulate the stability, active sites, and metal-carrier electronic interactions. Finally, the article discusses the challenges, opportunities, pressing issues, and future prospects related to MXene-based electrocatalysts.

Graphical abstract: Advances in MXene surface functionalization modification strategies for CO2 reduction

Article information

Article type
Review Article
Submitted
07 Apr 2024
Accepted
21 May 2024
First published
07 Jun 2024

Nanoscale, 2024,16, 11480-11495

Advances in MXene surface functionalization modification strategies for CO2 reduction

H. Li, L. Liu, T. Yuan, J. Zhang, T. Wang, J. Hou and J. Chen, Nanoscale, 2024, 16, 11480 DOI: 10.1039/D4NR01517G

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