Catalyst durability in electrocatalytic H 2 O 2 production: key factors and challenges.

Autor: Choi JS; Department of Technical Chemistry, Technical University of Darmstadt, Peter-Grünberg-Straße 8, 64287 Darmstadt, Germany. g.fortunato@tum.de.; Sustainable Energy Materials, Technical University Munich, Campus Straubing, Schulgasse 22, 94315 Straubing, Germany. marc.ledendecker@tum.de., Fortunato GV; Department of Technical Chemistry, Technical University of Darmstadt, Peter-Grünberg-Straße 8, 64287 Darmstadt, Germany. g.fortunato@tum.de.; Sustainable Energy Materials, Technical University Munich, Campus Straubing, Schulgasse 22, 94315 Straubing, Germany. marc.ledendecker@tum.de.; São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP 13566-590, Brazil., Jung DC; Department of Technical Chemistry, Technical University of Darmstadt, Peter-Grünberg-Straße 8, 64287 Darmstadt, Germany. g.fortunato@tum.de., Lourenço JC; Sustainable Energy Materials, Technical University Munich, Campus Straubing, Schulgasse 22, 94315 Straubing, Germany. marc.ledendecker@tum.de.; São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP 13566-590, Brazil., Lanza MRV; São Carlos Institute of Chemistry, University of São Paulo, Avenida Trabalhador São-Carlense 400, São Carlos, SP 13566-590, Brazil., Ledendecker M; Sustainable Energy Materials, Technical University Munich, Campus Straubing, Schulgasse 22, 94315 Straubing, Germany. marc.ledendecker@tum.de.; Helmholtz Institute Erlangen-Nürnberg for Renewable Energy (IEK-11), Forschungszentrum Jülich GmbH, Cauerstr. 1, 91058 Erlangen, Germany.
Jazyk: angličtina
Zdroj: Nanoscale horizons [Nanoscale Horiz] 2024 Jul 22; Vol. 9 (8), pp. 1250-1261. Date of Electronic Publication: 2024 Jul 22.
DOI: 10.1039/d4nh00109e
Abstrakt: On-demand electrocatalytic hydrogen peroxide (H 2 O 2 ) 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 H 2 O 2 production. However, the harsh operating conditions during the electrochemical H 2 O 2 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 H 2 O 2 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.
Databáze: MEDLINE
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