Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis
Composite Ni–SDC (Samaria doped Ceria) cathodes are able to operate in strong reducing atmospheres for steam electrolysis, and composite cathodes based on redox-stable La0.4Sr0.4TiO3 (LSTO) have demonstrated promising performances without the reducing gas flow. However, the electro-catalytic activit...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
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Elsevier SA
2014
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| Online Access: | http://hdl.handle.net/20.500.11937/41004 |
| _version_ | 1848756024191746048 |
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| author | Gan, Y. Qin, Q. Chen, S. Wang, Y. Dong, Dehua Xie, K. Wu, Y. |
| author_facet | Gan, Y. Qin, Q. Chen, S. Wang, Y. Dong, Dehua Xie, K. Wu, Y. |
| author_sort | Gan, Y. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Composite Ni–SDC (Samaria doped Ceria) cathodes are able to operate in strong reducing atmospheres for steam electrolysis, and composite cathodes based on redox-stable La0.4Sr0.4TiO3 (LSTO) have demonstrated promising performances without the reducing gas flow. However, the electro-catalytic activity of cathodes based on LSTO is insufficient for the efficient electrochemical reduction of steam or carbon oxide. In this work, catalytic-active Ni nanoparticles were loaded on a La0.4Sr0.4TiO3−δ–Ce0.8Sm0.2O2−δ cathode (Ni-loaded LSTO–SDC) via an impregnation method to improve the electrode performances for direct steam electrolysis. The synergetic effect of catalytically-active Ni nanoparticles and the redox-stable LSTO–SDC skeleton contributed to the improved performances and the excellent stability of the cathode for direct steam electrolysis. The current efficiency with a Ni-loaded cathode was enhanced by 3% and 17% compared to the values with a bare LSTO–SDC cathode under 2.0 V of applied voltage at 800 °C with a flow of 3% H2O/5% H2/Ar and 3% H2O/Ar to cathodes, respectively. |
| first_indexed | 2025-11-14T09:05:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-41004 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:05:37Z |
| publishDate | 2014 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-410042017-09-13T14:28:46Z Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis Gan, Y. Qin, Q. Chen, S. Wang, Y. Dong, Dehua Xie, K. Wu, Y. Steam electrolysis Solid oxide electrolyser Nickel Strontium titanate Composite Ni–SDC (Samaria doped Ceria) cathodes are able to operate in strong reducing atmospheres for steam electrolysis, and composite cathodes based on redox-stable La0.4Sr0.4TiO3 (LSTO) have demonstrated promising performances without the reducing gas flow. However, the electro-catalytic activity of cathodes based on LSTO is insufficient for the efficient electrochemical reduction of steam or carbon oxide. In this work, catalytic-active Ni nanoparticles were loaded on a La0.4Sr0.4TiO3−δ–Ce0.8Sm0.2O2−δ cathode (Ni-loaded LSTO–SDC) via an impregnation method to improve the electrode performances for direct steam electrolysis. The synergetic effect of catalytically-active Ni nanoparticles and the redox-stable LSTO–SDC skeleton contributed to the improved performances and the excellent stability of the cathode for direct steam electrolysis. The current efficiency with a Ni-loaded cathode was enhanced by 3% and 17% compared to the values with a bare LSTO–SDC cathode under 2.0 V of applied voltage at 800 °C with a flow of 3% H2O/5% H2/Ar and 3% H2O/Ar to cathodes, respectively. 2014 Journal Article http://hdl.handle.net/20.500.11937/41004 10.1016/j.jpowsour.2013.06.107 Elsevier SA restricted |
| spellingShingle | Steam electrolysis Solid oxide electrolyser Nickel Strontium titanate Gan, Y. Qin, Q. Chen, S. Wang, Y. Dong, Dehua Xie, K. Wu, Y. Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title | Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title_full | Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title_fullStr | Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title_full_unstemmed | Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title_short | Composite cathode La0.4Sr0.4TiO3-[delta]- Ce0.8Sm0.2O2-[delta] impregnated with Ni for high-temperature steam electrolysis |
| title_sort | composite cathode la0.4sr0.4tio3-[delta]- ce0.8sm0.2o2-[delta] impregnated with ni for high-temperature steam electrolysis |
| topic | Steam electrolysis Solid oxide electrolyser Nickel Strontium titanate |
| url | http://hdl.handle.net/20.500.11937/41004 |