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TiO2 Supported Pt Based Bimetallic Nanocatalysts for Selective Hydrogenation of Citral

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1TitleTitle of DocumentTiO2 Supported Pt Based Bimetallic Nanocatalysts for Selective Hydrogenation of Citral
2CreatorAuthor's name, affiliation, country S. A. ANANTHAN, R. SURESH, K. GIRIBABU, R. MANIGANDAN and V. NARAYANAN
Department of Inorganic Chemistry, School of Chemical Sciences, University of Madras, Guindy Campus, Chennai-600 025, India
3SubjectDicipline(s) Chemical Science
3SubjectKeywords Bimetallic nanocatalysts, TiO2 supported, SMSI effect, Thermal reduction, Citral hydrogenation, Unsaturated alcohols
4DescriptionAbstract TiO2 supported Pt based bimetallic nanocatalysts were prepared by impregnation method and reduced at two different temperatures, 375 C and 575 C for the selective hydrogenation of citral to the corresponding unsaturated alcohols namely; geraniol (GOL) and nerol (NOL). The catalysts were characterized by BET surface area measurement, FT-IR, SEM, EDAX, TEM, XRD and XPS. The prepared nanocatalysts are uniformly dispersed with an average particles size 50-100 nm and zero valence metallic state. The SMSI (Strong Meal-Support Interaction) effect shows that the catalysts reduced at higher temperature leads to an increase in selectivity toward unsaturated alcohols (GOL & NOL) for Pt-Ru/TiO2 compared to Pt-Pd/TiO2 and Pt-Au/TiO2 nanocatalysts. In addition a second metal (Ru) also leads to an increase of the GOL & NOL selectivity during the citral hydrogenation. The generated partially oxidized second metal species due to the difference in electronegativity, strongly binds the C=O group and also paves the way for the selective activation of the C=O bond. Metal support interaction and promoter active metal interaction increased the unsaturated alcohol formation.
5PublishersOrganizing agency, location WWW Publications, India
6Contributor Sponsor(s) -
7DateDate (YYYY-MM-DD) -
8TypeStatus & genre Peer-reviewed Article
8TypeType
9FormateFile Formate PDF
10IdentifierUniform Resource Identifier Click Here
10IdentifierDigital Object Identifier DOI:10.7598/cst2013.24
11SourceJournal/conference title; vol., no. (Year)Chemical Science Transactions, Volume  2 , Number  (S1), (2013)
12LanuguageEnglish=en en
13RelationSupp.files
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