A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell
SSC (70 wt.% SrSc0.2Co0.8O3-d)-SDC (30 wt.% Sm0.2Ce0.8O1.9) composite was evaluated as cathode for intermediate-temperature solid-oxide fuel cells. The effect of firing temperature on the chemical interaction between SSC and SDC was characterized by oxygen-temperature programmed desorption (O2-TPD)...
| Main Authors: | , , , , |
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| Format: | Journal Article |
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Elsevier Ltd
2010
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| Online Access: | http://hdl.handle.net/20.500.11937/44201 |
| _version_ | 1848756929272217600 |
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| author | An, B. Zhou, W. Guo, Y. Ran, R. Shao, Zongping |
| author_facet | An, B. Zhou, W. Guo, Y. Ran, R. Shao, Zongping |
| author_sort | An, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | SSC (70 wt.% SrSc0.2Co0.8O3-d)-SDC (30 wt.% Sm0.2Ce0.8O1.9) composite was evaluated as cathode for intermediate-temperature solid-oxide fuel cells. The effect of firing temperature on the chemical interaction between SSC and SDC was characterized by oxygen-temperature programmed desorption (O2-TPD) techniques. Certain type of phase reactions occurred between SSC and SDC at calcination temperatures higher than 950 °C. The conductivity of the composite was measured by a four-prober direct current technique. The electro-catalytic activity of the composite electrode for oxygen reduction was measured by electrochemical impedance spectroscopy (EIS) in a symmetric cell configuration. The electrode fired at 950 °C showed the best performance. By applying the SSC + SDC-composite electrode, a cell with a ~20-µm thick SDC electrolyte delivered a peak power density of 760 mW cm-2 at 600 °C. This suggested that an SSC + SDC-composite electrode may be a promising cathode for intermediate-temperature solid-oxide fuel cells. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. |
| first_indexed | 2025-11-14T09:20:00Z |
| format | Journal Article |
| id | curtin-20.500.11937-44201 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:20:00Z |
| publishDate | 2010 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-442012017-09-13T14:29:23Z A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell An, B. Zhou, W. Guo, Y. Ran, R. Shao, Zongping SSC (70 wt.% SrSc0.2Co0.8O3-d)-SDC (30 wt.% Sm0.2Ce0.8O1.9) composite was evaluated as cathode for intermediate-temperature solid-oxide fuel cells. The effect of firing temperature on the chemical interaction between SSC and SDC was characterized by oxygen-temperature programmed desorption (O2-TPD) techniques. Certain type of phase reactions occurred between SSC and SDC at calcination temperatures higher than 950 °C. The conductivity of the composite was measured by a four-prober direct current technique. The electro-catalytic activity of the composite electrode for oxygen reduction was measured by electrochemical impedance spectroscopy (EIS) in a symmetric cell configuration. The electrode fired at 950 °C showed the best performance. By applying the SSC + SDC-composite electrode, a cell with a ~20-µm thick SDC electrolyte delivered a peak power density of 760 mW cm-2 at 600 °C. This suggested that an SSC + SDC-composite electrode may be a promising cathode for intermediate-temperature solid-oxide fuel cells. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. 2010 Journal Article http://hdl.handle.net/20.500.11937/44201 10.1016/j.ijhydene.2010.03.044 Elsevier Ltd restricted |
| spellingShingle | An, B. Zhou, W. Guo, Y. Ran, R. Shao, Zongping A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title | A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title_full | A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title_fullStr | A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title_full_unstemmed | A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title_short | A composite oxygen-reduction electrode composed of SrSc 0.2Co0.8O3-d perovskite and Sm 0.2Ce0.8O1.9 for an intermediate-temperature solid-oxide fuel cell |
| title_sort | composite oxygen-reduction electrode composed of srsc 0.2co0.8o3-d perovskite and sm 0.2ce0.8o1.9 for an intermediate-temperature solid-oxide fuel cell |
| url | http://hdl.handle.net/20.500.11937/44201 |