Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells
Nano-structured Pd-infiltrated YSZ cathodes (Pd + YSZ) are prepared by impregnation method and their electrocatalytic activity and reduction-oxidation behavior are investigated. It is observed that nano-sized PdO particles are uniformly distributed on the surface of the YSZ scaffold and decomposed a...
| Main Authors: | , , , , , |
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| Format: | Journal Article |
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Elsevier SA
2011
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| Online Access: | http://hdl.handle.net/20.500.11937/56994 |
| _version_ | 1848759989350432768 |
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| author | Liang, F. Chen, J. Chi, B. Pu, J. Jiang, San Ping Jian, L. |
| author_facet | Liang, F. Chen, J. Chi, B. Pu, J. Jiang, San Ping Jian, L. |
| author_sort | Liang, F. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Nano-structured Pd-infiltrated YSZ cathodes (Pd + YSZ) are prepared by impregnation method and their electrocatalytic activity and reduction-oxidation behavior are investigated. It is observed that nano-sized PdO particles are uniformly distributed on the surface of the YSZ scaffold and decomposed at a temperature below 800 °C in air. Coexistence of Pd and PdO in the Pd + YSZ cathode is detected at temperatures between 650 and 750 °C. The polarization resistance R E of the Pd + YSZ cathode decreases continuously as oxygen partial pressure increases from 0.001 to 1 atm at 600 and 850 °C, whereas it reaches a minimum in the vicinity of 0.03 atm of oxygen partial pressure at 750 °C. In air with an oxygen partial pressure of 0.21 atm, the Pd + YSZ shows the lowest activation energy for the oxygen reduction reaction in the temperature range of 650 and 750 °C. |
| first_indexed | 2025-11-14T10:08:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-56994 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:08:38Z |
| publishDate | 2011 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-569942018-02-06T03:12:21Z Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells Liang, F. Chen, J. Chi, B. Pu, J. Jiang, San Ping Jian, L. Nano-structured Pd-infiltrated YSZ cathodes (Pd + YSZ) are prepared by impregnation method and their electrocatalytic activity and reduction-oxidation behavior are investigated. It is observed that nano-sized PdO particles are uniformly distributed on the surface of the YSZ scaffold and decomposed at a temperature below 800 °C in air. Coexistence of Pd and PdO in the Pd + YSZ cathode is detected at temperatures between 650 and 750 °C. The polarization resistance R E of the Pd + YSZ cathode decreases continuously as oxygen partial pressure increases from 0.001 to 1 atm at 600 and 850 °C, whereas it reaches a minimum in the vicinity of 0.03 atm of oxygen partial pressure at 750 °C. In air with an oxygen partial pressure of 0.21 atm, the Pd + YSZ shows the lowest activation energy for the oxygen reduction reaction in the temperature range of 650 and 750 °C. 2011 Journal Article http://hdl.handle.net/20.500.11937/56994 10.1016/j.jpowsour.2010.07.011 Elsevier SA restricted |
| spellingShingle | Liang, F. Chen, J. Chi, B. Pu, J. Jiang, San Ping Jian, L. Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title | Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title_full | Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title_fullStr | Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title_full_unstemmed | Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title_short | Redox behavior of supported Pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| title_sort | redox behavior of supported pd particles and its effect on oxygen reduction reaction in intermediate temperature solid oxide fuel cells |
| url | http://hdl.handle.net/20.500.11937/56994 |