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タイトル: Electrochemical reduction behavior of borosilicate glass in molten CaCl₂
著者: Katasho, Yumi
Yang, Xiao
Yasuda, Kouji
Nohira, Toshiyuki  kyouindb  KAKEN_id
著者名の別形: 片所, 優宇美
楊, 肖
安田, 幸司
野平, 俊之
キーワード: borosilicate glass
electrochemical reduction
molten salt
vitrified radioactive wastes
発行日: 26-Aug-2016
出版者: Electrochemical Society Inc.
誌名: Journal of the Electrochemical Society
巻: 163
号: 10
開始ページ: D622
終了ページ: D627
抄録: The electrochemical reduction behavior of borosilicate glass, which is the main component of vitrified radioactive waste, was investigated in molten CaCl₂ at 1123 K to establish a new nuclear waste disposal procedure. Cyclic voltammetry of borosilicate and silica glasses suggested that the reduction of B₂O₃ in borosilicate glass occurred at a more positive potential than that of SiO₂. X-ray photoelectron spectroscopy confirmed that the B₂O₃ component was reduced to B or a B-Si compound at 0.9 V vs. Ca²⁺/Ca. The reduction products prepared by the potentiostatic electrolysis of borosilicate glass at 0.9 V had granular morphology and consisted of crystalline Si. The Al₂O₃ component was not reduced at 0.9 V and the Na₂O component was suggested to be dissolved in molten CaCl₂ during electrolysis.
著作権等: © The Electrochemical Society, Inc. 2016. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in J. Electrochem. Soc. 2016 volume 163, issue 10, D622-D627.
This is not the published version. Please cite only the published version. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。
URI: http://hdl.handle.net/2433/234943
DOI(出版社版): 10.1149/2.0971610jes
出現コレクション:学術雑誌掲載論文等

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