Structure-dependent CO2 reduction on molybdenite (MoS2) electrocatalysts

Jake Limb; Lachlan F. Gaudin; Cameron L. Bentley

doi:10.1039/D4CC00496E

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Structure-dependent CO₂ reduction on molybdenite (MoS₂) electrocatalysts†

Jake Limb,^a Lachlan F. Gaudin^a and Cameron L. Bentley

*^a

Author affiliations

* Corresponding authors

^a School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
E-mail: Cameron.Bentley@monash.edu

Abstract

Scanning electrochemical cell microscopy (SECCM) is employed to directly identify the structure-dependent electrochemical CO₂ reduction reaction (eCO₂RR) activity of molybdenite (MoS₂) electrocatalysts in an aqueous imidazolium-based aprotic ionic liquid electrolyte. Nanoscale defects, where the edge plane (EP) is exposed, are directly targeted, revealing heightened overall activity (eCO₂RR + the competing hydrogen evolution reaction, HER) over the relatively inactive basal plane (BP). In addition, certain types of defects (e.g., step edges) only exhibit heightened activity under a CO₂ atmosphere (i.e., compared to N₂), indirectly confirming higher selectivity at these surface sites. Overall, this work will guide the bottom-up design of earth-abundant electrocatalysts for use in large-scale CO₂ electrolysis.

This article is part of the themed collection: 2024 Emerging Investigators

Download options Please wait...

Supplementary files

Article information

DOI: https://doi.org/10.1039/D4CC00496E
Article type: Communication
Submitted: 01 Feb 2024
Accepted: 28 Mar 2024
First published: 28 Mar 2024

Download Citation

Chem. Commun., 2024, Advance Article

Permissions

Request permissions

Structure-dependent CO₂ reduction on molybdenite (MoS₂) electrocatalysts

J. Limb, L. F. Gaudin and C. L. Bentley, Chem. Commun., 2024, Advance Article , DOI: 10.1039/D4CC00496E

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.

Chemical Communications