| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2017-03-24 |
| タイトル |
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|
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 |
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|
言語 |
eng |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
CeO_2-ZrO_2 nanoparticles |
| キーワード |
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主題Scheme |
Other |
|
主題 |
Homogeneous |
| キーワード |
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|
主題Scheme |
Other |
|
主題 |
domain |
| キーワード |
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主題Scheme |
Other |
|
主題 |
core-shell structures |
| キーワード |
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|
主題Scheme |
Other |
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主題 |
Rapid synthesis |
| 資源タイプ |
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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.
Habu, Teppei
Tooriyama, Hiroko
Ohtani, Masataka
Kobiro, Kazuya
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| 抄録 |
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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 |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
0896-8446 |
| DOI |
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関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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関連識別子 |
10.1016/j.supflu.2014.12.004 |
| 著者版フラグ |
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出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 出版者 |
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|
出版者 |
Elsevier B.V. |
28-14c.pdf (3.6 MB)
