Issue 8, 2024

Catalyst durability in electrocatalytic H2O2 production: key factors and challenges

Abstract

On-demand electrocatalytic hydrogen peroxide (H2O2) production is a significant technological advancement that offers a promising alternative to the traditional anthraquinone process. This approach leverages electrocatalysts for the selective reduction of oxygen through a two-electron transfer mechanism (ORR-2e), holding great promise for delivering a sustainable and economically efficient means of H2O2 production. However, the harsh operating conditions during the electrochemical H2O2 production lead to the degradation of both structural integrity and catalytic efficacy in these materials. Here, we systematically examine the design strategies and materials typically utilized in the electroproduction of H2O2 in acidic environments. We delve into the prevalent reactor conditions and scrutinize the factors contributing to catalyst deactivation. Additionally, we propose standardised benchmarking protocols aimed at evaluating catalyst stability under such rigorous conditions. To this end, we advocate for the adoption of three distinct accelerated stress tests to comprehensively assess catalyst performance and durability.

Graphical abstract: Catalyst durability in electrocatalytic H2O2 production: key factors and challenges

Supplementary files

Article information

Article type
Minireview
Submitted
12 3 2024
Accepted
29 5 2024
First published
29 5 2024
This article is Open Access
Creative Commons BY license

Nanoscale Horiz., 2024,9, 1250-1261

Catalyst durability in electrocatalytic H2O2 production: key factors and challenges

J. S. Choi, G. V. Fortunato, D. C. Jung, J. C. Lourenço, M. R. V. Lanza and M. Ledendecker, Nanoscale Horiz., 2024, 9, 1250 DOI: 10.1039/D4NH00109E

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