DICP OpenIR
Ultrasmall Platinum Stabilized on Triphenylphosphine-Modified Silica for Chemoselective Hydrogenation
Jayakumar, Sanjeevi1,2; Modak, Arindam1; Guo, Miao1,3; Li, He1; Hu, Xiangping4; Yang, Qihua1
KeywordNanoparticles p Ligands Platinum Polymers Supported Catalysts
Source PublicationCHEMISTRY-A EUROPEAN JOURNAL
2017-06-07
DOI10.1002/chem.201700980
Volume23Pages:7791-7797
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordAROMATIC KETONES ; SELECTIVE HYDROGENATION ; RUTHENIUM NANOPARTICLES ; GOLD NANOPARTICLES ; CATALYTIC-ACTIVITY ; ORGANIC-LIGANDS ; PHOSPHINE ; CO ; PD ; RH
AbstractChemoselective hydrogenation of substrates with more than one functional group that could be hydrogenated is quite challenging and is of fundamental importance. Here, the enhanced chemoselectivity of ultrasmall (< 1 nm) platinum nanoparticles (NPs) stabilized on silica modified with triphenylphosphine (PSiO2) in hydrogenation reactions is reported. Platinum NPs on PSiO2 exhibit much higher selectivity than those on SiO2 in the hydrogenation of acetophenone to 1-phenylethanol (99.9 versus 36%) and hydrogenation of phenylacetylene to styrene (85 versus 52%). The results of NMR spectroscopy, X-ray photoelectron spectroscopy, and in situ CO adsorption FTIR spectroscopy indicate the existence of strong interactions between triphenylphosphine and Pt NPs. Consequently, Pt NPs on PSiO2 have smaller particle sizes and more positive Pt 4 f binding energy than those of Pt/SiO2; these are the main contributors to the superior chemoselectivity of Pt NPs. The organically modified silica could act as an efficient solid ligand for tuning the catalytic performance of metal NPs.
Language英语
WOS IDWOS:000402799200024
Citation statistics
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/152194
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, 457 Zhongshan Rd, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Int Coll, Beijing 100049, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Dalian Inst Chem Phys, Lab Fine Chem, Dalian, Peoples R China
Recommended Citation
GB/T 7714
Jayakumar, Sanjeevi,Modak, Arindam,Guo, Miao,et al. Ultrasmall Platinum Stabilized on Triphenylphosphine-Modified Silica for Chemoselective Hydrogenation[J]. CHEMISTRY-A EUROPEAN JOURNAL,2017,23:7791-7797.
APA Jayakumar, Sanjeevi,Modak, Arindam,Guo, Miao,Li, He,Hu, Xiangping,&Yang, Qihua.(2017).Ultrasmall Platinum Stabilized on Triphenylphosphine-Modified Silica for Chemoselective Hydrogenation.CHEMISTRY-A EUROPEAN JOURNAL,23,7791-7797.
MLA Jayakumar, Sanjeevi,et al."Ultrasmall Platinum Stabilized on Triphenylphosphine-Modified Silica for Chemoselective Hydrogenation".CHEMISTRY-A EUROPEAN JOURNAL 23(2017):7791-7797.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Jayakumar, Sanjeevi]'s Articles
[Modak, Arindam]'s Articles
[Guo, Miao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Jayakumar, Sanjeevi]'s Articles
[Modak, Arindam]'s Articles
[Guo, Miao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Jayakumar, Sanjeevi]'s Articles
[Modak, Arindam]'s Articles
[Guo, Miao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.