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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202110455
|2 doi
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|a pubmed24n1127.xml
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|a (DE-627)NLM338358064
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|a (NLM)35305275
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|a DE-627
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|c DE-627
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|a eng
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|a Zhao, Linmin
|e verfasserin
|4 aut
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|a A Magnetically Separable Pd Single-Atom Catalyst for Efficient Selective Hydrogenation of Phenylacetylene
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|c 2022
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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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|2 rdacarrier
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|a Date Revised 20.05.2022
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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 Selective hydrogenation of alkynes to alkenes plays a crucial role in the synthesis of fine chemicals. However, how to achieve high selectivity and effective separation of the catalyst and substrate while obtaining high activity is the key for this reaction. In this work, a Pd single-atom catalyst is anchored to the shell of magnetic core-shell particles that consist of a Ni-nanoparticles core and a graphene sheets shell (NiG) for semi-hydrogenation of phenylacetylene, delivering 93% selectivity to styrene at full conversion with a robust turnover frequency of 7074 h-1 under mild reaction conditions (303 K, 2 bar H2 ). Moreover, the catalyst can be recovered promptly from the liquid phase due to its magnetic separability, which makes it present good stability for enduring five cycles. Experimental and theoretical investigations reveal that H2 and substrates are activated by atomically dispersed Pd atoms and Ni@G hybrid support, respectively. The hydrogenation reaction occurs on the surface of Ni@G via hydrogen spillover from the metal to the support. Such a strategy opens an avenue for designing highly active, selective, and magnetically recyclable catalysts for selective hydrogenation in liquid reaction systems
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|a Journal Article
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|a heterogeneous catalysis
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|a magnetically separable catalysts
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|a palladium single-atom catalysts
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|a selective hydrogenation reaction
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|a Qin, Xuetao
|e verfasserin
|4 aut
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|a Zhang, Xirui
|e verfasserin
|4 aut
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1 |
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|a Cai, Xiangbin
|e verfasserin
|4 aut
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| 700 |
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|a Huang, Fei
|e verfasserin
|4 aut
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| 700 |
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|a Jia, Zhimin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Diao, Jiangyong
|e verfasserin
|4 aut
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| 700 |
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|a Xiao, Dequan
|e verfasserin
|4 aut
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| 700 |
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|a Jiang, Zheng
|e verfasserin
|4 aut
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| 700 |
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|a Lu, Ruifeng
|e verfasserin
|4 aut
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|a Wang, Ning
|e verfasserin
|4 aut
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|a Liu, Hongyang
|e verfasserin
|4 aut
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| 700 |
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|a Ma, Ding
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 20 vom: 19. Mai, Seite e2110455
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:20
|g day:19
|g month:05
|g pages:e2110455
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|u http://dx.doi.org/10.1002/adma.202110455
|3 Volltext
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