Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration
Palladium-impregnated or infiltrated La0.8Sr0.2MnO3–Gd0.2Ce0.8O1.9 (LSM-GDC) composites are studied as the oxygen electrodes (anodes) for the hydrogen production in solid oxide electrolysis cells (SOECs). The incorporation of small amount of Pd nanoparticles leads to a substantial increase in the el...
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| Format: | Journal Article |
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Elsevier Ltd
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/7745 |
| _version_ | 1848745458211487744 |
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| author | Chen, Kongfa Ai, Na Jiang, San Ping |
| author_facet | Chen, Kongfa Ai, Na Jiang, San Ping |
| author_sort | Chen, Kongfa |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Palladium-impregnated or infiltrated La0.8Sr0.2MnO3–Gd0.2Ce0.8O1.9 (LSM-GDC) composites are studied as the oxygen electrodes (anodes) for the hydrogen production in solid oxide electrolysis cells (SOECs). The incorporation of small amount of Pd nanoparticles leads to a substantial increase in the electrocatalytic activity and stability of the LSM-GDC oxygen electrodes. The electrode polarization resistance (RE) at 800 °C on a 0.2 mg cm−2 Pd-infiltrated LSM-GDC electrode is 0.13 Ω cm2, significantly smaller than 0.42 Ω cm2 for the reaction on the pure LSM-GDC electrodes. The overpotential loss is also substantially reduced after the Pd infiltration; at an anodic overpotential 50 mV and 800 °C, the current increases from 0.15 A cm−2 for the pure LSM-GDC anode to 0.47 A cm−2 on a 0.3 mg cm−2 Pd-infiltrated LSM-GDC. The infiltrated Pd nanoparticles enhance the stability of the LSM-GDC oxygen electrodes and are most effective in the promotion of the diffusion, exchange and combination processes of oxygen species on the surface of LSM-GDC particles, leading to the increase in the oxygen evolution reaction rate. |
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| format | Journal Article |
| id | curtin-20.500.11937-7745 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:17:41Z |
| publishDate | 2012 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
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| spelling | curtin-20.500.11937-77452017-09-13T14:37:51Z Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration Chen, Kongfa Ai, Na Jiang, San Ping Palladium-impregnated or infiltrated La0.8Sr0.2MnO3–Gd0.2Ce0.8O1.9 (LSM-GDC) composites are studied as the oxygen electrodes (anodes) for the hydrogen production in solid oxide electrolysis cells (SOECs). The incorporation of small amount of Pd nanoparticles leads to a substantial increase in the electrocatalytic activity and stability of the LSM-GDC oxygen electrodes. The electrode polarization resistance (RE) at 800 °C on a 0.2 mg cm−2 Pd-infiltrated LSM-GDC electrode is 0.13 Ω cm2, significantly smaller than 0.42 Ω cm2 for the reaction on the pure LSM-GDC electrodes. The overpotential loss is also substantially reduced after the Pd infiltration; at an anodic overpotential 50 mV and 800 °C, the current increases from 0.15 A cm−2 for the pure LSM-GDC anode to 0.47 A cm−2 on a 0.3 mg cm−2 Pd-infiltrated LSM-GDC. The infiltrated Pd nanoparticles enhance the stability of the LSM-GDC oxygen electrodes and are most effective in the promotion of the diffusion, exchange and combination processes of oxygen species on the surface of LSM-GDC particles, leading to the increase in the oxygen evolution reaction rate. 2012 Journal Article http://hdl.handle.net/20.500.11937/7745 10.1016/j.ijhydene.2011.10.015 Elsevier Ltd restricted |
| spellingShingle | Chen, Kongfa Ai, Na Jiang, San Ping Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title | Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title_full | Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title_fullStr | Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title_full_unstemmed | Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title_short | Enhanced electrochemical performance and stability of (La,Sr)MnO3-(Gd,Ce)O2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| title_sort | enhanced electrochemical performance and stability of (la,sr)mno3-(gd,ce)o2 oxygen electrodes of solid oxide electrolysis cells by palladium infiltration |
| url | http://hdl.handle.net/20.500.11937/7745 |