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Title: Dispersed Ru nanoclusters transformed from a grafted trinuclear Ru complex on SiO<inf>2</inf>for selective alcohol oxidation
Authors: Satoshi Muratsugu
Min Hwee Lim
Takahiro Itoh
Wipavee Thumrongpatanaraks
Mio Kondo
Shigeyuki Masaoka
T. S. Andy Hor
Mizuki Tada
National Institutes of Natural Sciences - Institute for Molecular Science
Nagoya University
Sokendai Graduate University for Advanced Studies
National University of Singapore
Mahidol University
Institute of Materials Research and Engineering, A-Star, Singapore
Keywords: Chemistry
Issue Date: 21-Sep-2013
Citation: Dalton Transactions. Vol.42, No.35 (2013), 12611-12619
Abstract: Ru nanoclusters (average diameter = 1.3 ± 0.3 nm) were successfully prepared by using a Ru3cluster Ru3O(CH3COO)6(H2O)3·(CH3COO) grafted on a pyridine-functionalized SiO2surface. The pyridine moiety dispersed on the SiO2surface spread the Ru3cluster, controlling its surface density, and the nanoclusterization of the Ru cluster proceeded on the surface. The structures of the Ru nanoclusters were characterized by means of elemental analysis; thermogravimetric analysis; FT-IR, UV/vis, and solid-state NMR spectroscopy; BET analysis; X-ray photoelectron spectroscopy; X-ray diffraction; transmission electron microscopy; and Ru K-edge X-ray absorption fine structure analysis. It was found that the catalytic activity for the selective oxidation of alcohol to the corresponding aldehyde using O2highly depended on the dispersion and structures of the Ru particles, and the Ru nanocluster was found to be efficient in the selective oxidation of a variety of alcohols. © 2013 The Royal Society of Chemistry.
ISSN: 14779234
Appears in Collections:Scopus 2011-2015

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