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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202206991
|2 doi
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|a pubmed24n1153.xml
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|a (DE-627)NLM345984145
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|a (NLM)36081338
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Xu, Jie
|e verfasserin
|4 aut
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| 245 |
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|a Strong Electronic Metal-Support Interaction between Iridium Single Atoms and a WO3 Support Promotes Highly Efficient and Robust CO2 Cycloaddition
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|c 2022
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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 Revised 04.11.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The carbon dioxide (CO2 ) cycloaddition of epoxides to cyclic carbonates is of great industrial importance owing to the high economical values of its products. Single-atom catalysts (SACs) have great potential in CO2 cycloaddition by virtue of their high atom utilization efficiency and desired activity, but they generally suffer from poor reaction stability and catalytic activity arising from the weak interaction between the active centers and the supports. In this work, Ir single atoms stably anchored on the WO3 support (Ir1 -WO3 ) are developed with a strong electronic metal-support interaction (EMSI). Superior CO2 cycloaddition is realized in the Ir1 -WO3 catalyst via the EMSI effect: 100% conversion efficiency for the CO2 cycloaddition of styrene oxide to styrene carbonate after 15 h at 40 °C and excellent stability with no degradation even after ten reaction cycles for a total of more than 150 h. Density functional theory calculations reveal that the EMSI effect results in significant charge redistribution between the Ir single atoms and the WO3 support, and consequently lowers the energy barrier associated with epoxide ring opening. This work furnishes new insights into the catalytic mechanism of CO2 cycloaddition and would guide the design of stable SACs for efficient CO2 cycloaddition reactions
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|a Journal Article
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|a CO2 cycloaddition
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4 |
|a electronic metal-support interaction
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4 |
|a reaction yield
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| 650 |
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4 |
|a single-atom catalysts
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| 650 |
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4 |
|a stability
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| 700 |
1 |
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|a Xu, Heng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Anqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Yitong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dong, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tang, Bo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Yifei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Lexi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xijun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Jun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bie, Lijian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dai, Sheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yuhang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sun, Xuhui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yanguang
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 44 vom: 09. Nov., Seite e2206991
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2022
|g number:44
|g day:09
|g month:11
|g pages:e2206991
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202206991
|3 Volltext
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|a AR
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|d 34
|j 2022
|e 44
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|c 11
|h e2206991
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