Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas
Al2O3 and SnO2 additives are introduced into the Ni–YSZ cermet anode of solid oxide fuel cells (SOFCs) for operation on simulated biogas. The effects of incorporating Al2O3/SnO2 on the electrical conductivity, morphology, coking resistance and catalytic activity for biogas reforming of the cermet an...
| 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/20.500.11937/14738 |
| _version_ | 1848748703653822464 |
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| author | Wang, F. Wang, Wei Ran, R. Tade, Moses Shao, Zongping |
| author_facet | Wang, F. Wang, Wei Ran, R. Tade, Moses Shao, Zongping |
| author_sort | Wang, F. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Al2O3 and SnO2 additives are introduced into the Ni–YSZ cermet anode of solid oxide fuel cells (SOFCs) for operation on simulated biogas. The effects of incorporating Al2O3/SnO2 on the electrical conductivity, morphology, coking resistance and catalytic activity for biogas reforming of the cermet anode are systematically studied. The electrochemical performance of the internal reforming SOFC is enhanced by introducing an appropriate amount of Al2O3 into the anode, but it becomes worse with excess alumina addition. For SnO2, a negative effect on the electrochemical performance is demonstrated, although the coking resistance of the anode is improved. For fuel cells operating on biogas, stable operation under a polarization current for 130 h at 750 °C is achieved for a cell with an Al2O3-modified anode, while cells with unmodified or SnO2-modified Ni–YSZ anodes show much poorer stability under the same conditions. The improved performance of the cell with the Al2O3-modified anode mainly results from the suppressed coking and sintering of the anode and from the formation of NiAl2O4 in the unreduced anode. In sum, modifying the anode with Al2O3 may be a useful and facile way to improve the coking resistance and electrochemical performance of the nickel-based cermet anodes for SOFCs. |
| first_indexed | 2025-11-14T07:09:16Z |
| format | Journal Article |
| id | curtin-20.500.11937-14738 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:09:16Z |
| publishDate | 2014 |
| publisher | Elsevier SA |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-147382017-09-13T15:58:10Z Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas Wang, F. Wang, Wei Ran, R. Tade, Moses Shao, Zongping Al2O3 and SnO2 additives are introduced into the Ni–YSZ cermet anode of solid oxide fuel cells (SOFCs) for operation on simulated biogas. The effects of incorporating Al2O3/SnO2 on the electrical conductivity, morphology, coking resistance and catalytic activity for biogas reforming of the cermet anode are systematically studied. The electrochemical performance of the internal reforming SOFC is enhanced by introducing an appropriate amount of Al2O3 into the anode, but it becomes worse with excess alumina addition. For SnO2, a negative effect on the electrochemical performance is demonstrated, although the coking resistance of the anode is improved. For fuel cells operating on biogas, stable operation under a polarization current for 130 h at 750 °C is achieved for a cell with an Al2O3-modified anode, while cells with unmodified or SnO2-modified Ni–YSZ anodes show much poorer stability under the same conditions. The improved performance of the cell with the Al2O3-modified anode mainly results from the suppressed coking and sintering of the anode and from the formation of NiAl2O4 in the unreduced anode. In sum, modifying the anode with Al2O3 may be a useful and facile way to improve the coking resistance and electrochemical performance of the nickel-based cermet anodes for SOFCs. 2014 Journal Article http://hdl.handle.net/20.500.11937/14738 10.1016/j.jpowsour.2014.06.087 Elsevier SA restricted |
| spellingShingle | Wang, F. Wang, Wei Ran, R. Tade, Moses Shao, Zongping Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title | Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title_full | Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title_fullStr | Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title_full_unstemmed | Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title_short | Aluminum oxide as a dual-functional modifier of Ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| title_sort | aluminum oxide as a dual-functional modifier of ni-based anodes of solid oxide fuel cells for operation on simulated biogas |
| url | http://hdl.handle.net/20.500.11937/14738 |