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Ultra-simple synthetic approach to the fabrication of CeO_2-ZrO_2 mixed nanoparticles into homogeneous, domain, and core-shell structures in mesoporous spherical morphologies using supercritical alcohols
http://hdl.handle.net/10173/1460
http://hdl.handle.net/10173/14601e000310-d281-45c5-ad12-50cef9d3343d
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 | 2017-03-24 | |||||
タイトル | ||||||
タイトル | Ultra-simple synthetic approach to the fabrication of CeO_2-ZrO_2 mixed nanoparticles into homogeneous, domain, and core-shell structures in mesoporous spherical morphologies using supercritical alcohols | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | CeO_2-ZrO_2 nanoparticles | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Homogeneous | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | domain | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | core-shell structures | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Rapid synthesis | |||||
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 |
Pradeep, Ellawala K. C.
× Pradeep, Ellawala K. C.× Habu, Teppei× Tooriyama, Hiroko× Ohtani, Masataka× Kobiro, Kazuya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | CeO_2-ZrO_2 composite nanoparticles with mesoporous and spherical morphologies were assembled into different homogeneously dispersed, domain, and core-shell structures by changing the reaction conditions, such as the heating rate, acid, and solvent, in supercritical alcohols. Ce_xZr_<1−x>O_2 with homogeneous structures were prepared from Ce(NO_3)_3 and ZrO(NO_3)_2 in the presence of formic acid in methanol by rapid heating (500℃/min) to 300℃, while CeO_2–ZrO_2 with domain structures were obtained by slow heating (5.4℃/min). Treatment of mesoporous and spherical ZrO_2 nanoparticles with a Ce(NO_3)_3 solution in supercritical conditions yielded CeO_2-ZrO_2 nanocomposites with core-shell morphologies, while solvents playing a key role in controlling the thickness of the outer shell; methanol produced a very thin outer shell (<1 nm) of cubic CeO_2 and 2-propanol afforded a thick outer shell (100-200 nm) of cubic CeO_2. | |||||
書誌情報 |
The Journal of Supercritical Fluids 巻 97, p. 217-223, 発行日 2015-02 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0896-8446 | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1016/j.supflu.2014.12.004 | |||||
著者版フラグ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
出版者 | ||||||
出版者 | Elsevier B.V. |