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タイトル: | Dissolution Behavior of SiO₂ and Electrochemical Reduction of Dissolved SiO₂ in Molten Chlorides |
著者: | Ma, Yuanjia Yamamoto, Takayuki https://orcid.org/0000-0003-3553-3272 (unconfirmed) Yasuda, Kouji Nohira, Toshiyuki |
著者名の別形: | 馬, 元嘉 山本, 貴之 安田, 幸司 野平, 俊之 |
発行日: | 2020 |
出版者: | The Electrochemical Society |
誌名: | ECS Transactions |
巻: | 98 |
号: | 10 |
開始ページ: | 215 |
終了ページ: | 222 |
抄録: | To develop a new production process for SOG-Si with high productivity and low energy consumption, the structure of silicate ions in molten eutectic NaCl–CaCl₂ containing dissolved SiO₂ was investigated by Raman spectroscopy. The existence of SiO₃²⁻ was indicated in melts containing 1.0 mol% of CaSiO₃ (O²⁻/SiO₂ = 1.0). When 1.0 mol% of CaO was further added to the melt (O²⁻/SiO₂ = 2.0), the existence of SiO₄⁴⁻ was indicated. Cyclic voltammetry and potentiostatic electrolysis were conducted in molten NaCl–CaCl₂ with different silicate ions. From cyclic voltammograms, XRD analysis, and SEM observation, silicate ions with different structure indicated different electrochemical reduction behavior; and the SiO₃²⁻ ion is likely to be more suitable than SiO₄⁴ ion for the electrodeposition of Si. |
著作権等: | This is the Accepted Manuscript version of an article accepted for publication in ECS Transactions. The Electrochemical Society and IOP Publishing Ltd are not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1149/09810.0215ecst. 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。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/255866 |
DOI(出版社版): | 10.1149/09810.0215ecst |
出現コレクション: | 学術雑誌掲載論文等 |
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