Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane
Ru-Al2O3 composites with varied Ru contents were synthesized by a glycine-nitrate combustion technique. Their potential application as anode catalyst functional layer of a solid-oxide fuel cell operating on methane fuel was investigated. Catalytic tests demonstrated the 3-7 wt.% Ru-Al2O3 composites...
| Main Authors: | , , |
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| Format: | Journal Article |
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2011
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| Online Access: | http://hdl.handle.net/20.500.11937/16122 |
| _version_ | 1848749083283423232 |
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| author | Wang, W. Ran, R. Shao, Zongping |
| author_facet | Wang, W. Ran, R. Shao, Zongping |
| author_sort | Wang, W. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Ru-Al2O3 composites with varied Ru contents were synthesized by a glycine-nitrate combustion technique. Their potential application as anode catalyst functional layer of a solid-oxide fuel cell operating on methane fuel was investigated. Catalytic tests demonstrated the 3-7 wt.% Ru-Al2O3 composites had high catalytic activity for methane partial oxidation and CO2/H2O reforming reactions, while 1 wt.% Ru-Al2O3 had insufficient activity. The 3 wt.% Ru-Al2O3 catalyst also showed excellent operation stability and good thermal-mechanical compatibility with Ni-YSZ anode. H 2-TPR and TEM results indicated there was strong interaction between RuOx and Al2O3 in the as-synthesized catalysts, which may account for the good catalytic stability of 3 wt.% Ru-Al 2O3 catalyst. O2-TPO results demonstrated Ru-Al2O3 also had excellent coking resistance. Furthermore, the carbon deposited over Ru-Al2O3 had lower graphitization degree than that deposited over Ni-Al2O3, suggesting the easier elimination of potential carbon deposited over the Ru-Al2O3 catalysts. A cell with 3 wt.% Ru-Al 2O3 catalyst functional layer was prepared, wh-ich delivered peak power densities of 1006, 952 and 929 mW cm-2 at 850 °C, operating on methane-O2, methane-H2O and methane-CO2 gas mixtures, respectively, comparable to that operating on hydrogen fuel. It highly promised 3 wt.% Ru-Al2O3 as a coking resistant catalyst layer for solid-oxide fuel cells. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. |
| first_indexed | 2025-11-14T07:15:18Z |
| format | Journal Article |
| id | curtin-20.500.11937-16122 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:15:18Z |
| publishDate | 2011 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-161222017-09-13T15:03:20Z Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane Wang, W. Ran, R. Shao, Zongping Ru-Al2O3 composites with varied Ru contents were synthesized by a glycine-nitrate combustion technique. Their potential application as anode catalyst functional layer of a solid-oxide fuel cell operating on methane fuel was investigated. Catalytic tests demonstrated the 3-7 wt.% Ru-Al2O3 composites had high catalytic activity for methane partial oxidation and CO2/H2O reforming reactions, while 1 wt.% Ru-Al2O3 had insufficient activity. The 3 wt.% Ru-Al2O3 catalyst also showed excellent operation stability and good thermal-mechanical compatibility with Ni-YSZ anode. H 2-TPR and TEM results indicated there was strong interaction between RuOx and Al2O3 in the as-synthesized catalysts, which may account for the good catalytic stability of 3 wt.% Ru-Al 2O3 catalyst. O2-TPO results demonstrated Ru-Al2O3 also had excellent coking resistance. Furthermore, the carbon deposited over Ru-Al2O3 had lower graphitization degree than that deposited over Ni-Al2O3, suggesting the easier elimination of potential carbon deposited over the Ru-Al2O3 catalysts. A cell with 3 wt.% Ru-Al 2O3 catalyst functional layer was prepared, wh-ich delivered peak power densities of 1006, 952 and 929 mW cm-2 at 850 °C, operating on methane-O2, methane-H2O and methane-CO2 gas mixtures, respectively, comparable to that operating on hydrogen fuel. It highly promised 3 wt.% Ru-Al2O3 as a coking resistant catalyst layer for solid-oxide fuel cells. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. 2011 Journal Article http://hdl.handle.net/20.500.11937/16122 10.1016/j.ijhydene.2010.09.048 restricted |
| spellingShingle | Wang, W. Ran, R. Shao, Zongping Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title | Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title_full | Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title_fullStr | Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title_full_unstemmed | Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title_short | Combustion-synthesized Ru-Al2O3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| title_sort | combustion-synthesized ru-al2o3 composites as anode catalyst layer of a solid oxide fuel cell operating on methane |
| url | http://hdl.handle.net/20.500.11937/16122 |