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Fabrication and characterization of a p-type Cu3Nb2O8 photocathode toward photoelectrochemical reduction of carbon dioxide
http://hdl.handle.net/10228/00006666
http://hdl.handle.net/10228/000066660f421f0f-49e8-40f7-aee1-60e9de096058
名前 / ファイル | ライセンス | アクション |
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||
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公開日 | 2018-03-23 | |||||||||
タイトル | ||||||||||
タイトル | Fabrication and characterization of a p-type Cu3Nb2O8 photocathode toward photoelectrochemical reduction of carbon dioxide | |||||||||
言語 | ||||||||||
言語 | eng | |||||||||
資源タイプ | ||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
資源タイプ | journal article | |||||||||
著者 |
Kamimura, Sunao
× Kamimura, Sunao× Murakami, Naoya
WEKO
27551
× Tsubota, Toshiki× Ohno, Teruhisa
WEKO
6794
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抄録 | ||||||||||
内容記述タイプ | Abstract | |||||||||
内容記述 | We report a new p-type Cu3Nb2O8 as a thin film photocathode, which was fabricated through spin-coating by a metal organic decomposition method. The p-type Cu3Nb2O8 photocathode exhibited a strong cathodic photocurrent, and the incident photon-to-current conversion efficiency plot confirmed that the p-type Cu3Nb2O8 photocathode has the ability to utilize the visible light (λ < ca. 480 nm). Furthermore, we demonstrated photoelectrochemical reduction of carbon dioxide with the primary product being carbon monoxide by utilizing the p-type Cu3Nb2O8 photocathode under AM 1.5 G solar light irradiation. From the results of Mott–Schottky analysis, UV–vis measurement and ultraviolet photoemission spectroscopy, the conduction band potential of p-type Cu3Nb2O8 was estimated to be –1.21 V versus a normal hydrogen electrode (NHE) at pH 7 with its conduction band edge located at a more negative potential than the reduction potential of carbon dioxide to carbon monoxide. Although the cathodic photocurrent of the p-type Cu3Nb2O8 photocathode gradually decayed with time, it recovered upon thermal annealing in air. This behavior suggests that the photocurrent response of the p-type Cu3Nb2O8 photocathode is intimately related to variation of the valence state of copper ions. In this paper, the photoelectrochemical properties of the p-type Cu3Nb2O8 photocathode are described in conjunction with optical, electrical and structural properties, and characteristics of the p-type Cu3Nb2O8 photocathode for the photoelectrochemical reduction of carbon dioxide are discussed. | |||||||||
書誌情報 |
Applied Catalysis B: Environmental 巻 174-175, p. 471-476, 発行日 2015-09 |
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出版者 | ||||||||||
出版者 | Elsevier | |||||||||
ISSN | ||||||||||
収録物識別子タイプ | ISSN | |||||||||
収録物識別子 | 0926-3373 | |||||||||
NCID | ||||||||||
収録物識別子タイプ | NCID | |||||||||
収録物識別子 | AA1082551X | |||||||||
DOI | ||||||||||
関連タイプ | isVersionOf | |||||||||
識別子タイプ | DOI | |||||||||
関連識別子 | info:doi/10.1016/j.apcatb.2015.03.034 | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Photocathode | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Photocatalyst | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Carbon dioxide | |||||||||
キーワード | ||||||||||
主題Scheme | Other | |||||||||
主題 | Photoelectrochemical reduction | |||||||||
著作権関連情報 | ||||||||||
権利情報 | Copyright (c) 2015 Elsevier B.V. | |||||||||
出版タイプ | ||||||||||
出版タイプ | AM | |||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||
論文ID(連携) | ||||||||||
10276033 | ||||||||||
査読の有無 | ||||||||||
値 | yes | |||||||||
研究者情報 | ||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html | ||||||||||
連携ID | ||||||||||
6583 |