Sustainable oxygen evolution electrocatalysis in aqueous 1 M H2SO4 with earth abundant nanostructured Co3O4
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Other documents of the author: Yu, Jiahao; Garcés Pineda, Felipe Andrés; González-Cobos, Jesús; Peña-Díaz, Marina; Rogero, Celia; Gimenez, Sixto; Spadaro, Maria Chiara; Arbiol, Jordi; Barja, Sara; Galan-Mascaros, Jose Ramon
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comunitat-uji-handle2:10234/160292
comunitat-uji-handle3:10234/160293
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Title
Sustainable oxygen evolution electrocatalysis in aqueous 1 M H2SO4 with earth abundant nanostructured Co3O4Author (s)
Date
2022-07-27Publisher
Nature ResearchISSN
2041-1723Bibliographic citation
Yu, J., Garcés-Pineda, F.A., González-Cobos, J. et al. Sustainable oxygen evolution electrocatalysis in aqueous 1 M H2SO4 with earth abundant nanostructured Co3O4. Nat Commun 13, 4341 (2022)Type
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info:eu-repo/semantics/publishedVersionSubject
Abstract
Earth-abundant electrocatalysts for the oxygen evolution reaction (OER) able to work in acidic working conditions are elusive. While many first-row transition metal oxides are competitive in alkaline media, most of ... [+]
Earth-abundant electrocatalysts for the oxygen evolution reaction (OER) able to work in acidic working conditions are elusive. While many first-row transition metal oxides are competitive in alkaline media, most of them just dissolve or become inactive at high proton concentrations where hydrogen evolution is preferred. Only noble-metal catalysts, such as IrO2, are fast and stable enough in acidic media. Herein, we report the excellent activity and long-term stability of Co3O4-based anodes in 1 M H2SO4 (pH 0.1) when processed in a partially hydrophobic carbon-based protecting matrix. These Co3O4@C composites reliably drive O2 evolution a 10 mA cm–2 current density for >40 h without appearance of performance fatigue, successfully passing benchmarking protocols without incorporating noble metals. Our strategy opens an alternative venue towards fast, energy efficient acid-media water oxidation electrodes. [-]
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Nature Communications, 13 (2022)Funder Name
Ministerio de Ciencia e Innovación. Agencia Estatal de Investigación (AEI) | European Regional Development Fund (ERDF) | Generalitat de Catalunya | Basque Government
Project code
RED2018-102459-T, RTI2018-095618-B-I00 | PID2020-116093RB-C41,C43&C44, PID2019-107338RB-C63, PID2020-114252GB-I00 | 2017-SGR-1406, 2017-SGR-327 | IT1591-22
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A way of making Europe
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info:eu-repo/semantics/openAccess
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