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TiO2/MnO2 composite electrode enabling photoelectric conversion and energy storage as photoelectrochemical capacitor
https://repository.lib.tottori-u.ac.jp/records/7298
https://repository.lib.tottori-u.ac.jp/records/729847ffec33-1998-4964-bd04-97632ed186d0
名前 / ファイル | ライセンス | アクション |
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Copyright © 2018 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-07-09 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | TiO2/MnO2 composite electrode enabling photoelectric conversion and energy storage as photoelectrochemical capacitor | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Photoelectrochemical capacitor | |||||
キーワード | ||||||
主題 | Composite electrode | |||||
キーワード | ||||||
主題 | Rutile-type TiO2 | |||||
キーワード | ||||||
主題 | γ-phase MnO2 | |||||
キーワード | ||||||
主題 | Hydrothermal synthesis | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Photoelectrochemical capacitor | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Composite electrode | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Rutile-type TiO2 | |||||
キーワード | ||||||
言語 | en | |||||
主題 | γ-phase MnO2 | |||||
キーワード | ||||||
言語 | en | |||||
主題 | Hydrothermal synthesis | |||||
資源タイプ | ||||||
資源タイプ | journal article | |||||
著者 |
Usui, Hiroyuki
× Usui, Hiroyuki× Suzuki, Shin× Domi, Yasuhiro× Sakaguchi, Hiroki |
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著者所属(英) | ||||||
en | ||||||
Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University | ||||||
著者所属(英) | ||||||
en | ||||||
Course of Chemistry and Biotechnology, Department of Engineering, Graduate School of Sustainability Science, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University | ||||||
著者所属(英) | ||||||
en | ||||||
Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University / Center for Research on Green Sustainable Chemistry, Tottori University | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | We prepared composite electrodes by using rutile TiO2 particles and γ-MnO2 particles, and evaluated their photoelectrochemical capacitor properties based on Na+ adsorption by light irradiation in aqueous electrolytes. By employing different synthesis method for TiO2 particles, we synthesized TiO2 particles with various particle sizes and crystallite sizes. An electrode of sol-gel-synthesized TiO2 showed higher photovoltages compared with an electrode of commercial TiO2. This probably originates from a larger contact area between electrode surface and electrolyte because of its smaller particle size than commercial TiO2's size. A further enhancement in photovoltage was attained for an electrode of a hydrothermally-synthesized TiO2 with good crystallinity. We consider that electron-hole recombination was suppressed because hydrothermal TiO2 has a lower density of lattice defect trapping the photoexcited carriers. As photoelectrochemical capacitor, a composite electrode consisting of hydrothermal TiO2 and MnO2 exhibited a 2.4 times larger discharge capacity compared with that of commercial TiO2 and MnO2. This result is attributed to an increased amount of Na+ adsorption induced by the enhanced photovoltage of TiO2. | |||||
書誌情報 |
Materials Today Energy en : Materials Today Energy 巻 9, p. 229-234, 発行日 2018-05-30 |
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出版者 | ||||||
出版者 | Elsevier Ltd. | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 24686069 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.mtener.2018.05.013 | |||||
権利 | ||||||
権利情報 | Copyright © 2018 Elsevier Ltd. All rights reserved. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ | |||||
情報源 | ||||||
関連名称 | This research was published by Elsevier.: USUI, Hiroyuki, et al. TiO2/MnO2 composite electrode enabling photoelectric conversion and energy storage as photoelectrochemical capacitor. Materials today energy, 2018, 9: 229-234. https://doi.org/10.1016/j.mten | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.sciencedirect.com/science/article/pii/S2468606918300807 | |||||
関連名称 | https://www.sciencedirect.com/science/article/pii/S2468606918300807 | |||||
著者版フラグ | ||||||
出版タイプ | AM |