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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.1c01428
|2 doi
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|a pubmed25n1099.xml
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|a eng
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| 100 |
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|a Yu, Wen-Zhu
|e verfasserin
|4 aut
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| 245 |
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|a In Situ Generation of the Surface Oxygen Vacancies in a Copper-Ceria Catalyst for the Water-Gas Shift Reaction
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|c 2021
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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
|b cr
|2 rdacarrier
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|a Date Revised 07.09.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a The dissociation of H2O is a crucial aspect for the water-gas shift reaction, which often occurs on the vacancies of a reducible oxide support. However, the vacancies sometimes run off, thus inhibiting H2O dissociation. After high-temperature treatment, the ceria supports were lacking vacancies because of sintering. Unexpectedly, the in situ generation of surface oxygen vacancies was observed, ensuring the efficient dissociation of H2O. Due to the surface reconstruction of ceria nanorods, the copper species sustained were highly dispersed on the sintered support, on which CO was adsorbed efficiently to react with hydroxyls from H2O dissociation. In contrast, no surface reconstruction occurred in ceria nanoparticles, leading to the sintering of copper species. The sintered copper species were averse to adsorb CO, so the copper-ceria nanoparticle catalyst had poor reactivity even when surface oxygen vacancies could be generated in situ
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|a Journal Article
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|a Wu, Mei-Yao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Wei-Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jia, Chun-Jiang
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1985
|g 37(2021), 35 vom: 07. Sept., Seite 10499-10509
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnas
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| 773 |
1 |
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|g volume:37
|g year:2021
|g number:35
|g day:07
|g month:09
|g pages:10499-10509
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|u http://dx.doi.org/10.1021/acs.langmuir.1c01428
|3 Volltext
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|d 37
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|e 35
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|h 10499-10509
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