Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode
This paper reports the outlet gas composition and phase change of electrodes during the CO–H2O reaction (CO + H2O → H2 + CO2) using an electrochemical cell with MnO–GDC (Gd-doped ceria: Ce0.8Gd0.2O1.9) cathode/porous GDC electrolyte/Fe3O4–GDC anode system. In the cathode, oxidation of MnO by H2O (3M...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2015-03-01
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| Series: | Journal of Asian Ceramic Societies |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2187076414001043 |
| _version_ | 1819121888391069696 |
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| author | Koki Ueda Yoshihiro Hirata Soichiro Sameshima Taro Shimonosono Katsuhiko Yamaji |
| author_facet | Koki Ueda Yoshihiro Hirata Soichiro Sameshima Taro Shimonosono Katsuhiko Yamaji |
| author_sort | Koki Ueda |
| collection | DOAJ |
| description | This paper reports the outlet gas composition and phase change of electrodes during the CO–H2O reaction (CO + H2O → H2 + CO2) using an electrochemical cell with MnO–GDC (Gd-doped ceria: Ce0.8Gd0.2O1.9) cathode/porous GDC electrolyte/Fe3O4–GDC anode system. In the cathode, oxidation of MnO by H2O (3MnO + H2O → Mn3O4 + H2) and electrochemical reduction of Mn3O4 occurred (Mn3O4 + 2e− → 3MnO + O2−). In the anode, reduction of Fe3O4 by CO (Fe3O4 + CO → 3FeO + CO2) and electrochemical oxidation of FeO occurred (3FeO + O2− → Fe3O4 + 2e−). H2 and CO2 gases were produced through the above catalytic reactions. The fraction of H2 gas in the outlet gas increased at a high heating temperature and was 30–50% at 700 °C. As a parallel reaction of the CO–H2O reaction, the supplied CO gas was decomposed to CO2 and solid carbon over Fe3O4 in the anode at low temperatures (disproportion of CO, 2CO → CO2 + C). |
| first_indexed | 2024-12-22T06:43:43Z |
| format | Article |
| id | doaj.art-8c369d9003b3480aa492640ca9d21076 |
| institution | Directory Open Access Journal |
| issn | 2187-0764 |
| language | English |
| last_indexed | 2024-12-22T06:43:43Z |
| publishDate | 2015-03-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Journal of Asian Ceramic Societies |
| spelling | doaj.art-8c369d9003b3480aa492640ca9d210762022-12-21T18:35:22ZengTaylor & Francis GroupJournal of Asian Ceramic Societies2187-07642015-03-0131828710.1016/j.jascer.2014.11.002Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anodeKoki Ueda0Yoshihiro Hirata1Soichiro Sameshima2Taro Shimonosono3Katsuhiko Yamaji4Department of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, JapanDepartment of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, JapanDepartment of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, JapanDepartment of Chemistry, Biotechnology, and Chemical Engineering, Kagoshima University, 1-21-40 Korimoto, Kagoshima 890-0065, JapanFuel Cell Group, Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, JapanThis paper reports the outlet gas composition and phase change of electrodes during the CO–H2O reaction (CO + H2O → H2 + CO2) using an electrochemical cell with MnO–GDC (Gd-doped ceria: Ce0.8Gd0.2O1.9) cathode/porous GDC electrolyte/Fe3O4–GDC anode system. In the cathode, oxidation of MnO by H2O (3MnO + H2O → Mn3O4 + H2) and electrochemical reduction of Mn3O4 occurred (Mn3O4 + 2e− → 3MnO + O2−). In the anode, reduction of Fe3O4 by CO (Fe3O4 + CO → 3FeO + CO2) and electrochemical oxidation of FeO occurred (3FeO + O2− → Fe3O4 + 2e−). H2 and CO2 gases were produced through the above catalytic reactions. The fraction of H2 gas in the outlet gas increased at a high heating temperature and was 30–50% at 700 °C. As a parallel reaction of the CO–H2O reaction, the supplied CO gas was decomposed to CO2 and solid carbon over Fe3O4 in the anode at low temperatures (disproportion of CO, 2CO → CO2 + C).http://www.sciencedirect.com/science/article/pii/S2187076414001043Water-gas shift reactionElectrochemical cellMnOFe3O4Gadolinium-doped ceria |
| spellingShingle | Koki Ueda Yoshihiro Hirata Soichiro Sameshima Taro Shimonosono Katsuhiko Yamaji Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode Journal of Asian Ceramic Societies Water-gas shift reaction Electrochemical cell MnO Fe3O4 Gadolinium-doped ceria |
| title | Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode |
| title_full | Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode |
| title_fullStr | Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode |
| title_full_unstemmed | Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode |
| title_short | Formation of hydrogen from the CO–H2O system using porous Gd-doped ceria electrochemical cell with MnO cathode and Fe3O4 anode |
| title_sort | formation of hydrogen from the co h2o system using porous gd doped ceria electrochemical cell with mno cathode and fe3o4 anode |
| topic | Water-gas shift reaction Electrochemical cell MnO Fe3O4 Gadolinium-doped ceria |
| url | http://www.sciencedirect.com/science/article/pii/S2187076414001043 |
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