Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media
Developing a low-cost, and highly-efficient catalysts for improving oxygen reduction reaction (ORR) is imperative to the energy storage and conversion device. Here, we synthesized Ag/La0.6Sr0.4CoO3-d (Ag/LSC) composites by decorating LSC with Ag using the electroless technique. As a result, the LSC...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
| Published: |
The Electrochemical Society, Inc
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/69728 |
| _version_ | 1848762118327762944 |
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| author | Wang, X. Ge, L. Zhu, Y. Dai, J. Zhou, W. Shao, Zongping |
| author_facet | Wang, X. Ge, L. Zhu, Y. Dai, J. Zhou, W. Shao, Zongping |
| author_sort | Wang, X. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Developing a low-cost, and highly-efficient catalysts for improving oxygen reduction reaction (ORR) is imperative to the energy storage and conversion device. Here, we synthesized Ag/La0.6Sr0.4CoO3-d (Ag/LSC) composites by decorating LSC with Ag using the electroless technique. As a result, the LSC was homogenously overlaid with Ag nanoparticles. The derived Ag/LSC composites possessed a relatively higher specific surface area than pure LSC and Ag. The Co-O-Ag bonds in the composites contribute substantial electrons transferred from Ag to Co element, resulting in the unique electronic structures and strong electronic interaction between Ag and LSC. The significant improvements of ORR activity in alkaline solution at room temperature can be observed in Ag/LSC composites compared to the pure Ag and LSC. The composites with optimal Ag loading (50 wt%) showed best ORR activity among all the composites according to the half-wave potential and diffusion limiting current density. The presented strategy of silver surface modification via electroless process can provide effective routes for designing high performance metal oxide (e.g. perovskite) composite electrocatalysts. |
| first_indexed | 2025-11-14T10:42:29Z |
| format | Journal Article |
| id | curtin-20.500.11937-69728 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:42:29Z |
| publishDate | 2018 |
| publisher | The Electrochemical Society, Inc |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-697282020-06-15T04:44:01Z Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media Wang, X. Ge, L. Zhu, Y. Dai, J. Zhou, W. Shao, Zongping Developing a low-cost, and highly-efficient catalysts for improving oxygen reduction reaction (ORR) is imperative to the energy storage and conversion device. Here, we synthesized Ag/La0.6Sr0.4CoO3-d (Ag/LSC) composites by decorating LSC with Ag using the electroless technique. As a result, the LSC was homogenously overlaid with Ag nanoparticles. The derived Ag/LSC composites possessed a relatively higher specific surface area than pure LSC and Ag. The Co-O-Ag bonds in the composites contribute substantial electrons transferred from Ag to Co element, resulting in the unique electronic structures and strong electronic interaction between Ag and LSC. The significant improvements of ORR activity in alkaline solution at room temperature can be observed in Ag/LSC composites compared to the pure Ag and LSC. The composites with optimal Ag loading (50 wt%) showed best ORR activity among all the composites according to the half-wave potential and diffusion limiting current density. The presented strategy of silver surface modification via electroless process can provide effective routes for designing high performance metal oxide (e.g. perovskite) composite electrocatalysts. 2018 Journal Article http://hdl.handle.net/20.500.11937/69728 10.1149/2.1131809jes The Electrochemical Society, Inc restricted |
| spellingShingle | Wang, X. Ge, L. Zhu, Y. Dai, J. Zhou, W. Shao, Zongping Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title | Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title_full | Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title_fullStr | Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title_full_unstemmed | Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title_short | Silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| title_sort | silver-perovskite hybrid electrocatalysts for oxygen reduction reaction in alkaline media |
| url | http://hdl.handle.net/20.500.11937/69728 |