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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2023.2202828
|2 doi
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|a pubmed24n1413.xml
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|a (DE-627)NLM355480417
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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 Zhou, Jing
|e verfasserin
|4 aut
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| 245 |
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|a Toluene catalytic oxidation over gold catalysts supported on cerium-based high-entropy oxides
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 20.05.2024
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|a Date Revised 20.05.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a A series of cerium-based high-entropy oxide catalysts (the ratio of CeO2 and HEO is 1:1) was prepared by a solid-state reaction method, which exploit their unique structural and performance advantages. The Ce-HEO-T samples can achieve 100% toluene conversion rate above 328°C when they were used as catalysts directly. Subsequently, the Ce-HEO-500 exhibited the lowest temperature for toluene oxidation was used as a support to deposit different amounts of Au for a further performance improvement. Among all of prepared samples, Au/Ce-HEO-500 with a moderate content of Au (0.5 wt%) exhibited the lowest temperature for complete combustion of toluene (260°C), which decreased nearly 70°C compared with Ce-HEO-500 support. Moreover, it also showed excellent stability for 60 h with 98% toluene conversion rate. Most importantly, under the condition of 5 vol.% H2O vapour, the toluene conversion rate remained unchanged and even increased slightly compared with that in dry air, exhibiting excellent water resistance. Combined with the characterizations of XRD, SEM, TEM, BET, Raman, H2-TPR and XPS, it was found that the high dispersion of active Au NPs, the special high-entropy structure and the synergistic effect between Au and Ce, Co, Cu are the key factors when improving the catalytic performance in the Au/Ce-HEO-500 catalyst
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|a Journal Article
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|a Volatile organic compounds
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|a gold NPs
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|a high-entropy oxide
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|a oxygen vacancies
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|a water resistance
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7 |
|a ceric oxide
|2 NLM
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| 700 |
1 |
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|a Zheng, Yuhua
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Guangyi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zeng, Xi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xu, Guangwen
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cui, Yanbin
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Environmental technology
|d 1993
|g 45(2024), 15 vom: 29. Mai, Seite 3016-3028
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
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|g volume:45
|g year:2024
|g number:15
|g day:29
|g month:05
|g pages:3016-3028
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|u http://dx.doi.org/10.1080/09593330.2023.2202828
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