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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/11433

Title: Effects of Preparation Methods and Electronic States of the AuPd Bimetallic Nanoparticles on the Activity for Aerobic Oxidation of Alcohols
Authors: Nishimura, S.
Yakita, Y.
Katayama, M.
Higashimine, K.
Ebitani, K.
Keywords: AuPd nanoalloy
alcohol oxidation
preparation method
electronic negativity
Issue Date: 2013-05
Publisher: Nano Science and Technology Institute
Magazine name: Nanotech 2013
Volume: 1
Start page: 448
End page: 451
Abstract: Correlations between nanostructure of AuPd active sites synthesized with different preparation methods and their catalytic activities for the oxidation of alcohols were investigated. The catalytic activity strongly depend on the morphology and Au/Pd molar ratio of the AuPd active site, these were attributed by the differences in preparation methods. The Au_<60>Pd_<40>-PVP/HT catalyst prepared with a simultaneous reduction method exhibited the highest activity for aerobic oxidation of alcohol; ex. TON = 395,700, TOF = 207,000 h^<-1> for 1-phenylethanol oxidation.Characterizations with TEM, XPS, XAFS and other analytical techniques suggested that the highly active Au_<60>Pd_<40>-PVP/HT catalyst possessed uniform AuPd nanoalloys and the largest amount of electrons in Au 5d states. These results proposed that formation of the uniform AuPd nanoalloys allowed a big electron transfer from Pd to Au atoms, and which played an important factor for the significant activity of the Au_<60>Pd_<40>-PVP/HT.
Rights: © 2013 NSTI http://nsti.org. Reprinted and revised, with permission, from Nanotech 2013, pp. 448-451, May 12-16, 2013, Washington DC, U.S.A.
URI: http://hdl.handle.net/10119/11433
Material Type: publisher
Appears in Collections:c11-1. 会議発表論文 (Conference Papers)

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