Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell
The oxide-carbonate composite electrolyte material with high ionic conductivity at low temperature has been thought that it can be used to develop LT-SOFC. However, the carbonate composite electrolyte is not easy to make it dense, especially mixing and packing oxide and carbonate to fabricate the co...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2022-01-01
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| Series: | Science and Technology for Energy Transition |
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| Online Access: | https://www.stet-review.org/articles/stet/full_html/2022/01/stet210256/stet210256.html |
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| author | Liang Yong-Xin Ma Ze-Rong Yu Si-Ting He Xin-Yue Ke Xu-Yang Yan Ri-Feng Liang Xiao-Xian Wu Xin Huang Rui-Sen Wen Liang-Cheng Cao Gengyu |
| author_facet | Liang Yong-Xin Ma Ze-Rong Yu Si-Ting He Xin-Yue Ke Xu-Yang Yan Ri-Feng Liang Xiao-Xian Wu Xin Huang Rui-Sen Wen Liang-Cheng Cao Gengyu |
| author_sort | Liang Yong-Xin |
| collection | DOAJ |
| description | The oxide-carbonate composite electrolyte material with high ionic conductivity at low temperature has been thought that it can be used to develop LT-SOFC. However, the carbonate composite electrolyte is not easy to make it dense, especially mixing and packing oxide and carbonate to fabricate the composite electrolyte simply. In this article, rare-earth-doped CeO2 (RDC) (R = La, Sm, Gd, and Gd + Y) series samples were prepared by wet ball-milling, then sintered into fully dense and porous oxide bulk at 1500–1600 °C and 1000 °C. Melted carbonate LNCO, composed of Li2CO3 and Na2CO3 at a molar ratio of 1:1, was combined with porous oxide bulk materials using a bath method at 500 °C for 10 h to prepare a dense carbonate-oxide composite electrolyte. The dense oxide-carbonate composite electrolyte always obtains by this fabrication process. Boiling water was used to remove carbonate from these composites. Lattice parameters were obtained through Rietveld refinement, and a calculation procedure for quantifying the composite density was proposed. The quantified composite density results were verified through scanning electron microscopy microstructure observations. The Ce valence in the RDC oxides and RDC-carbonate composite was analyzed by X-ray absorption near edge structure spectroscopy to observe the effects of heat treatment temperature and carbonate on the Ce4+/Ce3+ mixed-valence state in doped CeO2. |
| first_indexed | 2024-04-12T18:00:55Z |
| format | Article |
| id | doaj.art-fb27a47fcf794e8bbb136852630d7ae2 |
| institution | Directory Open Access Journal |
| issn | 2804-7699 |
| language | English |
| last_indexed | 2024-04-12T18:00:55Z |
| publishDate | 2022-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | Science and Technology for Energy Transition |
| spelling | doaj.art-fb27a47fcf794e8bbb136852630d7ae22022-12-22T03:22:10ZengEDP SciencesScience and Technology for Energy Transition2804-76992022-01-0177410.2516/stet/2022003stet210256Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cellLiang Yong-Xin0Ma Ze-Rong1Yu Si-Ting2He Xin-Yue3Ke Xu-Yang4Yan Ri-Feng5Liang Xiao-Xian6Wu Xin7Huang Rui-Sen8Wen Liang-Cheng9Cao Gengyu10College of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyCollege of Materials Science and Engineering, Guangdong University of Petrochemical TechnologyThe oxide-carbonate composite electrolyte material with high ionic conductivity at low temperature has been thought that it can be used to develop LT-SOFC. However, the carbonate composite electrolyte is not easy to make it dense, especially mixing and packing oxide and carbonate to fabricate the composite electrolyte simply. In this article, rare-earth-doped CeO2 (RDC) (R = La, Sm, Gd, and Gd + Y) series samples were prepared by wet ball-milling, then sintered into fully dense and porous oxide bulk at 1500–1600 °C and 1000 °C. Melted carbonate LNCO, composed of Li2CO3 and Na2CO3 at a molar ratio of 1:1, was combined with porous oxide bulk materials using a bath method at 500 °C for 10 h to prepare a dense carbonate-oxide composite electrolyte. The dense oxide-carbonate composite electrolyte always obtains by this fabrication process. Boiling water was used to remove carbonate from these composites. Lattice parameters were obtained through Rietveld refinement, and a calculation procedure for quantifying the composite density was proposed. The quantified composite density results were verified through scanning electron microscopy microstructure observations. The Ce valence in the RDC oxides and RDC-carbonate composite was analyzed by X-ray absorption near edge structure spectroscopy to observe the effects of heat treatment temperature and carbonate on the Ce4+/Ce3+ mixed-valence state in doped CeO2.https://www.stet-review.org/articles/stet/full_html/2022/01/stet210256/stet210256.htmlsolid electrolytecarbonatefull densemixed-valence states |
| spellingShingle | Liang Yong-Xin Ma Ze-Rong Yu Si-Ting He Xin-Yue Ke Xu-Yang Yan Ri-Feng Liang Xiao-Xian Wu Xin Huang Rui-Sen Wen Liang-Cheng Cao Gengyu Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell Science and Technology for Energy Transition solid electrolyte carbonate full dense mixed-valence states |
| title | Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell |
| title_full | Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell |
| title_fullStr | Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell |
| title_full_unstemmed | Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell |
| title_short | Preparation and property analysis of solid carbonate-oxide composite materials for an electrolyte used in low-temperature solid oxide fuel cell |
| title_sort | preparation and property analysis of solid carbonate oxide composite materials for an electrolyte used in low temperature solid oxide fuel cell |
| topic | solid electrolyte carbonate full dense mixed-valence states |
| url | https://www.stet-review.org/articles/stet/full_html/2022/01/stet210256/stet210256.html |
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