Enhancing the oxygen evolution reaction activity of CuCo based hydroxides with V2CTx MXene

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F24%3A43929948" target="_blank" >RIV/60461373:22310/24:43929948 - isvavai.cz</a>

Result on the web

<a href="https://pubs.rsc.org/en/content/articlehtml/2024/ta/d4ta02700k" target="_blank" >https://pubs.rsc.org/en/content/articlehtml/2024/ta/d4ta02700k</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4ta02700k" target="_blank" >10.1039/d4ta02700k</a>

Result language

angličtina

Original language name

Enhancing the oxygen evolution reaction activity of CuCo based hydroxides with V2CTx MXene

Original language description

The oxygen evolution reaction (OER) is a key reaction in the production of green hydrogen by water electrolysis. In alkaline media, the current state of the art catalysts used for the OER are based on non-noble metal oxides. However, despite their huge potential as OER catalysts, these materials exhibit various disadvantages including lack of stability and conductivity that hinder the wide-spread utilization of these materials in alkaline electrolyzer devices. This study highlights the innovative chemical functionalization of a mixed copper cobalt hydroxide with the V2CTx MXene to enhance the OER efficiency, addressing the need for effective electrocatalytic interfaces for sustainable hydrogen production. The herein synthesized CuCo@V2CTx electrocatalysts demonstrate remarkable activity, outperforming the pure CuCo catalysts for the OER and moreover show increased efficiency after 12 hours of continuous operation. This strategic integration improved the water oxidation performance of the pure oxide material by improving the composite&apos;s hydrophilicity, charge transfer properties and ability to hinder Cu leaching. The materials were characterized using an array of materials characterization techniques to help decipher both structure of the composite materials after synthesis and to elucidate the reasoning for the OER enhancement for the composites. This work demonstrates the significant potential of TMO-based nanomaterials combined with V2CTx for advanced innovative electrocatalytic interfaces in energy conversion applications.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

<a href="/en/project/LL2101" target="_blank" >LL2101: Next Generation of 2D Monoelemental Materials</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Materials Chemistry A

ISSN

2050-7488

e-ISSN

2050-7496

Volume of the periodical

12

Issue of the periodical within the volume

36

Country of publishing house

GB - UNITED KINGDOM

Number of pages

12

Pages from-to

24248-24259

UT code for WoS article

001291870800001

EID of the result in the Scopus database

2-s2.0-85201380843