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dc.contributor.author | Katasho, Yumi | en |
dc.contributor.author | Yasuda, Kouji | en |
dc.contributor.author | Nohira, Toshiyuki | en |
dc.contributor.alternative | 片所, 優宇美 | ja |
dc.contributor.alternative | 安田, 幸司 | ja |
dc.contributor.alternative | 野平, 俊之 | ja |
dc.date.accessioned | 2018-10-26T07:15:39Z | - |
dc.date.available | 2018-10-26T07:15:39Z | - |
dc.date.issued | 2017 | - |
dc.identifier.issn | 0013-4651 | - |
dc.identifier.uri | http://hdl.handle.net/2433/234816 | - |
dc.description.abstract | The electrochemical reduction of borosilicate glass in molten CaCl₂ at 1123 K was investigated. The behaviors of the constituent elements, i.e., Si, B, Al, Na, and K, were estimated using potential-pO²⁻ diagrams constructed from the thermodynamic data for the species. The diagrams suggested that the first cathodic wave in the cyclic voltammogram results from the reduction of the B₂O₃ component. The dissolution of the Na₂O and K₂O components, which was predicted from the diagrams, was confirmed by energy dispersive X-ray analysis of a borosilicate glass plate after immersion into molten CaCl₂ without electrolysis. The scanning electron microscopy/wavelength dispersive X-ray mappings and Raman spectrum for borosilicate glass reduced at 0.9 V vs. Ca²⁺/Ca indicated that SiO₂ and B₂O₃ are reduced to Si and B-Si compound. The formation of Ca-Al-O compounds owing to the increase of O²⁻ ions is suggested. The pO²⁻ range during electrolysis at 0.9 V was indicated to be 2.95-3.46. | en |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Electrochemical Society Inc. | en |
dc.rights | © The Author(s) 2017. Published by ECS. This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial No Derivatives 4.0 License (CC BY-NC-ND, http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial reuse, distribution, and reproduction in any medium, provided the original work is not changed in any way and is properly cited. For permission for commercial reuse, please email: oa@electrochem.org. | en |
dc.subject | borosilicate glass | en |
dc.subject | electrochemical reduction | en |
dc.subject | molten salt | en |
dc.subject | potential–pO²⁻ diagram | en |
dc.subject | vitrified radioactive wastes | en |
dc.title | Behaviors of Si, B, Al, and Na during electrochemical reduction of borosilicate glass in molten CaCl₂ | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Journal of the Electrochemical Society | en |
dc.identifier.volume | 164 | - |
dc.identifier.issue | 7 | - |
dc.identifier.spage | D478 | - |
dc.identifier.epage | S485 | - |
dc.relation.doi | 10.1149/2.1201707jes | - |
dc.textversion | publisher | - |
dc.address | Institute of Advanced Energy, Kyoto University | en |
dc.address | Agency for Health, Safety and Environment, Kyoto University・Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University | en |
dc.address | Institute of Advanced Energy, Kyoto University | en |
dcterms.accessRights | open access | - |
出現コレクション: | 学術雑誌掲載論文等 |
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