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Electrocatalytic Oxygen Evolution by Hierarchically Structured Cobalt–Iron Composites
The development of scalable routes to highly active and efficient oxygen evolution reaction (OER) electrocatalysts based on earth-abundant materials is crucial for post-fossil fuel energy schemes. Here, we demonstrate how commercial copper foam electrodes can be functionalized for water oxidation us...
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| Published in: | ACS applied materials & interfaces 2021-04, Vol.13 (16), p.19048-19054 |
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| Main Authors: | , , , , , , , , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-a330t-7506261bce345bf10d1a665b5d9004b83880b6e82f26e7ab0d583383900060213 |
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| cites | cdi_FETCH-LOGICAL-a330t-7506261bce345bf10d1a665b5d9004b83880b6e82f26e7ab0d583383900060213 |
| container_end_page | 19054 |
| container_issue | 16 |
| container_start_page | 19048 |
| container_title | ACS applied materials & interfaces |
| container_volume | 13 |
| creator | Gao, Dandan Liu, Rongji Liu, Si Greiner, Simon Anjass, Montaha Biskupek, Johannes Kaiser, Ute Braun, Hanna Jacob, Timo Streb, Carsten |
| description | The development of scalable routes to highly active and efficient oxygen evolution reaction (OER) electrocatalysts based on earth-abundant materials is crucial for post-fossil fuel energy schemes. Here, we demonstrate how commercial copper foam electrodes can be functionalized for water oxidation using a facile electrodeposition process. The resulting composite electrode features hierarchically structured cobalt–iron-based catalyst particles, which offer channel-like structures for the transport of electrolyte and release of oxygen gas bubbles. We report high electrocatalytic OER performance as demonstrated by high current densities at low overpotentials (293 mV at j = 50 mA cm–2) and long-term stability under technologically relevant alkaline conditions (>24 h in 1.0 M aqueous KOH). |
| doi_str_mv | 10.1021/acsami.1c03618 |
| format | article |
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| ispartof | ACS applied materials & interfaces, 2021-04, Vol.13 (16), p.19048-19054 |
| issn | 1944-8244 1944-8252 |
| language | eng |
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| source | American Chemical Society:Jisc Collections:American Chemical Society Read & Publish Agreement 2022-2024 (Reading list) |
| subjects | Functional Inorganic Materials and Devices |
| title | Electrocatalytic Oxygen Evolution by Hierarchically Structured Cobalt–Iron Composites |
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