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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202201109
|2 doi
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|a pubmed24n1134.xml
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|a (DE-627)NLM34031401X
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|a (NLM)35502659
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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 |
1 |
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|a Park, Seyeon
|e verfasserin
|4 aut
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|a Promoting Ex-Solution from Metal-Organic-Framework-Mediated Oxide Scaffolds for Highly Active and Robust Catalysts
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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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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 07.07.2022
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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 Ex-solution catalysts, in which a host oxide is decorated with confined metallic nanoparticles, have exhibited breakthrough activity in various catalytic reactions. However, catalysts prepared by conventional ex-solution processes are limited by the low surface area of host oxides, the limited solubility of dopants, and the incomplete conversion of doped cations into metal catalysts. Here, the design of the host oxide structure is reconceptualized using a metal-organic framework (MOF) as an oxide precursor that can absorb a large quantity of ions while also promoting ex-solution at low temperatures (400-500 °C). The MOF-derived metal oxide host can readily incorporate metal cations, from which catalytic nanoparticles can be uniformly ex-solved owing to the short diffusion length in the nano-sized oxides. The distinct ex-solution behaviors of Pt, Pd, and Rh, and their bimetallic combinations are investigated. The MOF-driven mesoporous ZnO particles functionalized with PdPt catalysts ex-solved at 500 °C show benchmark-level of acetone oxidation activity as well as acetone-sensing characteristics by accelerating both oxygen chemisorption and acetone dissociation. Their findings provide a new route for the preparation of highly active catalysts by engineering the architecture and composition of the host oxide to facilitate the ex-solution process rationally
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|a Journal Article
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|a ZnO
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|a ex-solution
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|a heterogeneous catalysts
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4 |
|a metal-organic frameworks
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4 |
|a oxidation
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|a volatile organic compounds
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| 700 |
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|a Oh, DongHwan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ahn, Jaewan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Jun Kyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Dong-Ha
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Seunghyun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Park, Chungseong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jung, WooChul
|e verfasserin
|4 aut
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| 700 |
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|a Kim, Il-Doo
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 27 vom: 28. Juli, Seite e2201109
|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:27
|g day:28
|g month:07
|g pages:e2201109
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|u http://dx.doi.org/10.1002/adma.202201109
|3 Volltext
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