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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1021/la501406w
|2 doi
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|a pubmed24n0794.xml
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|a (NLM)24827164
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Bao, Huizhi
|e verfasserin
|4 aut
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| 245 |
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|a Compositions, structures, and catalytic activities of CeO₂Cu₂O nanocomposites prepared by the template-assisted method
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 22.04.2015
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|a Date Revised 10.06.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a CeO2Cu2O nanocomposites were prepared from Cu2O cubes and octahedra by the template-assisted method involving the liquid (Ce(IV))-solid (Cu2O) interfacial reaction. Their compositions, structures, and catalytic activities in CO oxidation were studied in detail. Under the same reaction conditions, CeO2@Cu2O nanocomposites prepared from cubic and octahedral Cu2O templates exhibit different compositions and structures. With an increasing amount of Ce(IV) reactant, a smooth CeO2-CuOx shell develops on the surface of Cu2O cubes and eventually void cubic core/multishell Cu2O/CeO2-CuOx nanocomposites form; however, a rough CeO2-CuOx shell develops on the surface of Cu2O octahedra, and eventually hollow octahedral CeO2-CuOx nanocages form. The formation of different compositions and structures of CeO2@Cu2O nanocomposites was correlated with the different exposed crystal planes and surface reactivities of Cu2O cubes and octahedra. The catalytic activity of CeO2@Cu2O nanocomposites in CO oxidation depends on their compositions and structures. The most active CeO2@Cu2O nanocomposites become active at 70 °C and achieve a 100% CO conversion at 170 °C. These results broaden the versatility of Cu2O nanocrystals as the sacrificial template for the fabrication of novel nanocomposites with core/shell and hollow nanostructures and exemplify the morphology effect of Cu2O nanocrystals in liquid-solid interfacial reactions with respect to the composition, structure, and properties of nanocomposites prepared by the template-assisted method
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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7 |
|a Cerium
|2 NLM
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|a 30K4522N6T
|2 NLM
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|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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| 700 |
1 |
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|a Zhang, Zhenhua
|e verfasserin
|4 aut
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| 700 |
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|a Hua, Qing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huang, Weixin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 30(2014), 22 vom: 10. Juni, Seite 6427-36
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:30
|g year:2014
|g number:22
|g day:10
|g month:06
|g pages:6427-36
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|u http://dx.doi.org/10.1021/la501406w
|3 Volltext
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