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Synthesis and photocatalytic performance of yttrium-doped CeO2 with a hollow sphere structure
http://hdl.handle.net/10228/00008780
http://hdl.handle.net/10228/0000878065b2bb08-7497-4067-9b6c-1a86299b4865
名前 / ファイル | ライセンス | アクション |
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j.cattod.2016.06.049.pdf (1.1 MB)
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Item type | 学術雑誌論文 = Journal Article(1) | |||||||||||
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公開日 | 2022-03-23 | |||||||||||
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 | |||||||||||
タイトル | ||||||||||||
タイトル | Synthesis and photocatalytic performance of yttrium-doped CeO2 with a hollow sphere structure | |||||||||||
その他のタイトル | ||||||||||||
その他のタイトル | Synthesis and photocatalytic performance of yttrium-doped CeO<inf>2</inf> with a hollow sphere structure | |||||||||||
言語 | ||||||||||||
言語 | eng | |||||||||||
著者 |
Xu, Bin
× Xu, Bin× Zhang, Qitao× Yuan, Saisai× Liu, Sixiao× Zhang, Ming× 横野, 照尚
WEKO
6794
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抄録 | ||||||||||||
内容記述タイプ | Abstract | |||||||||||
内容記述 | We report a facile and novel approach to prepare yttrium-doped CeO2 with a hollow sphere hierarchical structure by a simple hydrothermal method with cerium nitrate hexahydrate and yttrium nitrate hexahydrate as original materials and polystyrene microsphere as a soft-template. Through systematic experiments, the effects of experimental parameters such as doping and morphology on photocatalytic characteristics of the ceria were examined in detail. The morphology and element distribution of the as-prepared samples were characterized by field emission scanning electron microscopy and high-resolution transmission electron microscopy. Structure information with Rietveld refined data were obtained by using an X-ray diffractometer. Intrinsic oxygen vacancies and extrinsic oxygen vacancies caused by doping were analyzed from Raman spectra. Analyses of elements and chemical valence analysis were carried out by X-ray photoelectron spectroscopy, and changes in reactive oxygen species were determined by calculation. Based on structural information, element valence states, and the results of photocatalytic decomposition of acetaldehyde, we can draw the conclusion that Y-doped CeO2 with a hollow sphere hierarchical structure has high photocatalytic activity, attributed to more oxygen vacancies and surface active oxygen species. Yttrium doped ceria with hollow sphere structure has a maximum rate constant of 0.0267 h−1 and an oxidation quantum efficiency of 0.3610%, which are about 2 times as high as that of pure CeO2 with octahedral structure. | |||||||||||
書誌情報 |
Catalysis Today 巻 281, 号 1, p. 135-143, 発行日 2016-11-22 |
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出版社 | ||||||||||||
出版者 | Elsevier | |||||||||||
DOI | ||||||||||||
関連タイプ | isVersionOf | |||||||||||
識別子タイプ | DOI | |||||||||||
関連識別子 | https://doi.org/10.1016/j.cattod.2016.06.049 | |||||||||||
日本十進分類法 | ||||||||||||
主題Scheme | NDC | |||||||||||
主題 | 431 | |||||||||||
ISSN | ||||||||||||
収録物識別子タイプ | ISSN | |||||||||||
収録物識別子 | 0920-5861 | |||||||||||
著作権関連情報 | ||||||||||||
権利情報 | Copyright (c) 2016 Elsevier B.V. All rights reserved. | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | CeO2 | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | Yttrium-doped | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | Hierarchical structure | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | Hollow sphere | |||||||||||
キーワード | ||||||||||||
主題Scheme | Other | |||||||||||
主題 | Oxygen vacancy | |||||||||||
出版タイプ | ||||||||||||
出版タイプ | AM | |||||||||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||
査読の有無 | ||||||||||||
値 | yes | |||||||||||
研究者情報 | ||||||||||||
https://hyokadb02.jimu.kyutech.ac.jp/html/98_ja.html | ||||||||||||
論文ID(連携) | ||||||||||||
10304363 | ||||||||||||
連携ID | ||||||||||||
10242 | ||||||||||||
著者別名 | ||||||||||||
姓名 | Xu, B. | |||||||||||
著者別名 | ||||||||||||
姓名 | Zhang, Q. | |||||||||||
著者別名 | ||||||||||||
姓名 | Yuan, S. | |||||||||||
著者別名 | ||||||||||||
姓名 | Liu, S. | |||||||||||
著者別名 | ||||||||||||
姓名 | Zhang, M. | |||||||||||
著者別名 | ||||||||||||
姓名 | Ohno, Teruhisa | |||||||||||
言語 | en | |||||||||||
姓名 | 横野, 照尚 | |||||||||||
言語 | ja | |||||||||||
姓名 | オウノ, テルヒサ | |||||||||||
言語 | ja-Kana |