Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis
The morphological evolution caused by Ni coarsening is one of the main causes of performance degradation in solid oxide fuel cell (SOFC) anode. In this study, we perform a model-based quantitative analysis to investigate the influences of morphological evolution on SOFC performance and durability. A...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2021-03-01
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| Series: | Applications in Energy and Combustion Science |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666352X20300169 |
| _version_ | 1818595060721123328 |
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| author | Yang Wang Chengru Wu Qing Du Meng Ni Kui Jiao Bingfeng Zu |
| author_facet | Yang Wang Chengru Wu Qing Du Meng Ni Kui Jiao Bingfeng Zu |
| author_sort | Yang Wang |
| collection | DOAJ |
| description | The morphological evolution caused by Ni coarsening is one of the main causes of performance degradation in solid oxide fuel cell (SOFC) anode. In this study, we perform a model-based quantitative analysis to investigate the influences of morphological evolution on SOFC performance and durability. A phase-field model is developed to track the temporal evolution of microstructure as inputs of an electrode numerical model for evaluating the electrochemical performance degradation over time. After model validation, parametric simulations are conducted. It is found that Ni coarsening manifests mainly in two aspects: the reduction of total three-phase boundary (TPB) length, and the lengthening of single TPB. Based on the quantified microstructure parameters, the overpotential increase caused by Ni coarsening is obtained. Besides, the results highlight the importance of Ni content on the temporal evolution. The performance analysis provides an optimal range of Ni content, which can maintain a relatively low overpotential during the whole process. |
| first_indexed | 2024-12-16T11:10:01Z |
| format | Article |
| id | doaj.art-e9ecc0402a7b41a69fbfaa9dbd131024 |
| institution | Directory Open Access Journal |
| issn | 2666-352X |
| language | English |
| last_indexed | 2024-12-16T11:10:01Z |
| publishDate | 2021-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Applications in Energy and Combustion Science |
| spelling | doaj.art-e9ecc0402a7b41a69fbfaa9dbd1310242022-12-21T22:33:46ZengElsevierApplications in Energy and Combustion Science2666-352X2021-03-015100016Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysisYang Wang0Chengru Wu1Qing Du2Meng Ni3Kui Jiao4Bingfeng Zu5State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China; Department of Building and Real Estate, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, ChinaState Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China; Department of Building and Real Estate, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, ChinaState Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China; Corresponding authors.Department of Building and Real Estate, Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China; Corresponding authors.State Key Laboratory of Engines, Tianjin University, 135 Yaguan Road, Tianjin 300350, China; Corresponding authors.Internal Combustion Engine Research Institute, Tianjin University, 92 Weijin Road, Tianjin, ChinaThe morphological evolution caused by Ni coarsening is one of the main causes of performance degradation in solid oxide fuel cell (SOFC) anode. In this study, we perform a model-based quantitative analysis to investigate the influences of morphological evolution on SOFC performance and durability. A phase-field model is developed to track the temporal evolution of microstructure as inputs of an electrode numerical model for evaluating the electrochemical performance degradation over time. After model validation, parametric simulations are conducted. It is found that Ni coarsening manifests mainly in two aspects: the reduction of total three-phase boundary (TPB) length, and the lengthening of single TPB. Based on the quantified microstructure parameters, the overpotential increase caused by Ni coarsening is obtained. Besides, the results highlight the importance of Ni content on the temporal evolution. The performance analysis provides an optimal range of Ni content, which can maintain a relatively low overpotential during the whole process.http://www.sciencedirect.com/science/article/pii/S2666352X20300169Solid oxide fuel cell (SOFC)Ni coarseningPhase-field modelElectrochemical performanceTemporal evolution |
| spellingShingle | Yang Wang Chengru Wu Qing Du Meng Ni Kui Jiao Bingfeng Zu Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis Applications in Energy and Combustion Science Solid oxide fuel cell (SOFC) Ni coarsening Phase-field model Electrochemical performance Temporal evolution |
| title | Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis |
| title_full | Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis |
| title_fullStr | Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis |
| title_full_unstemmed | Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis |
| title_short | Morphology and performance evolution of anode microstructure in solid oxide fuel cell: A model-based quantitative analysis |
| title_sort | morphology and performance evolution of anode microstructure in solid oxide fuel cell a model based quantitative analysis |
| topic | Solid oxide fuel cell (SOFC) Ni coarsening Phase-field model Electrochemical performance Temporal evolution |
| url | http://www.sciencedirect.com/science/article/pii/S2666352X20300169 |
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