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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.8b02023
|2 doi
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|a pubmed24n0957.xml
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|a (DE-627)NLM28735296X
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|a (NLM)30096238
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Nafria, Raquel
|e verfasserin
|4 aut
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| 245 |
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|a Growth of Au-Pd2Sn Nanorods via Galvanic Replacement and Their Catalytic Performance on Hydrogenation and Sonogashira Coupling Reactions
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|c 2018
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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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| 500 |
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|a Date Completed 07.11.2018
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|a Date Revised 07.11.2018
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Colloidal Pd2Sn and Au-Pd2Sn nanorods (NRs) with tuned size were produced by the reduction of Pd and Sn salts in the presence of size- and shape-controlling agents and the posterior growth of Au tips through a galvanic replacement reaction. Pd2Sn and Au-Pd2Sn NRs exhibited high catalytic activity toward quasi-homogeneous hydrogenation of alkenes (styrene and 1-octene) and alkynes (phenylacetylene and 1-octyne) in dichloromethane. Au-Pd2Sn NRs showed higher activity than Pd2Sn for 1-octene, 1-octyne, and phenylacetylene. In Au-Pd2Sn heterostructures, X-ray photoelectron spectroscopy evidenced an electron donation from the Pd2Sn NR to the Au tips. Such heterostructures showed distinct catalytic behavior in the hydrogenation of compounds containing a triple bond such as tolan. This can be explained by the aurophilicity of triple bonds. To further study this effect, Pd2Sn and Au-Pd2Sn NRs were also tested in the Sonogashira coupling reaction between iodobenzene and phenylacetylene in N, N-dimethylformamide. At low concentration, this reaction provided the expected product, tolan. However, at high concentration, more reduced products such as stilbene and 1,2-diphenylethane were also obtained, even without the addition of H2. A mechanism for this unexpected reduction is proposed
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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1 |
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|a Luo, Zhishan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ibáñez, Maria
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Martí-Sànchez, Sara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Xiaoting
|e verfasserin
|4 aut
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| 700 |
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|a de la Mata, Maria
|e verfasserin
|4 aut
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| 700 |
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|a Llorca, Jordi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arbiol, Jordi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kovalenko, Maksym V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Grabulosa, Arnald
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Muller, Guillermo
|e verfasserin
|4 aut
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| 700 |
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|a Cabot, Andreu
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 34(2018), 36 vom: 11. Sept., Seite 10634-10643
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2018
|g number:36
|g day:11
|g month:09
|g pages:10634-10643
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|u http://dx.doi.org/10.1021/acs.langmuir.8b02023
|3 Volltext
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|d 34
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|e 36
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|h 10634-10643
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