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Proton Conduction in In^3 + -Doped SnP2O7 at Intermediate Temperatures
http://hdl.handle.net/2237/18425
http://hdl.handle.net/2237/18425541f525e-3c03-456f-a1f7-8414cbb3db40
名前 / ファイル | ライセンス | アクション |
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J_Electrochem_Soc_2006-Nagao-A1604-9.pdf (147.3 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2013-08-28 | |||||
タイトル | ||||||
タイトル | Proton Conduction in In^3 + -Doped SnP2O7 at Intermediate Temperatures | |||||
言語 | en | |||||
著者 |
Nagao, Masahiro
× Nagao, Masahiro× Kamiya, Toshio× Heo, Pilwon× Tomita, Atsuko× Hibino, Takashi× Sano, Mitsuru |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | © The Electrochemical Society, Inc. 2006. 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 Journal of The Electrochemical Society. v.153, n.8, 2006, p.A1604-A1609. | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | tin compounds | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | indium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | ionic conductivity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Fourier transform spectra | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | infrared spectra | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | thermally stimulated desorption | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | X-ray diffraction | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | electrochemistry | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | doping | |||||
抄録 | ||||||
内容記述 | SnP2O7 -based proton conductors were characterized by Fourier transform infrared spectroscopy (FTIR), temperature-programmed desorption (TPD), X-ray diffraction (XRD), and electrochemical techniques. Undoped SnP2O7 showed overall conductivities greater than 10−2 S cm−1 in the temperature range of 75–300°C . The proton transport numbers of this material at 250°C under various conditions were estimated, based on the ratio of the electromotive force of the galvanic cells to the theoretical values, to be 0.97–0.99 in humidified H2 and 0.89–0.92 under fuel cell conditions. Partial substitution of In3+ for Sn4+ led to an increase in the proton conductivity (from 5.56×10−2 to 1.95×10−1 S cm −1 at 250°C , for example). FTIR and TPD measurements revealed that the effects of doping on the proton conductivity could be attributed to an increase in the proton concentration in the bulk Sn1−xInxP2O7 . The deficiency of P2O7 ions in the Sn1−xInxP2O7 bulk decreased the proton conductivity by several orders of magnitude, which was explained as due to a decrease in the proton mobility rather than the proton concentration. The mechanism of proton incorporation and conduction is examined and discussed in detail. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | The Electrochemical Society | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1149/1.2210669 | |||||
ISSN | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0013-4651 | |||||
書誌情報 |
en : Journal of The Electrochemical Society 巻 153, 号 8, p. A1604-A1609, 発行日 2006 |
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著者版フラグ | ||||||
値 | publisher | |||||
URI | ||||||
識別子 | http://dx.doi.org/10.1149/1.2210669 | |||||
識別子タイプ | DOI | |||||
URI | ||||||
識別子 | http://hdl.handle.net/2237/18425 | |||||
識別子タイプ | HDL |