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Title: Investigations on gold nanoparticles supported on rare earth oxide catalytic materials.
Authors: Bhargava, SK
Akolekar, DB
Foran, GJ
Keywords: Gold compounds
Rare earths
Oxide minerals
Issue Date: 18-Apr-2007
Publisher: Elsevier
Citation: Bhargava, S. K., Akolekar, D. B., & Foran, G. (2007). Investigations on gold nanoparticles supported on rare earth oxide catalytic materials. Journal of Molecular Catalysis a-Chemical, 267(1-2), 57-64. doi:10.1016/j.molcata.2006.11.018
Abstract: Supported gold nanoparticles rare earth (europium, dysprosium, samarium oxide, neodymium, gadolinium oxide and lanthanum oxide) materials were prepared using precipitation–deposition/co-precipitation methods. The techniques employed for the characterization of these materials were ICP-MS, TEM, XRD, BET, and XAS. Au L3-edge X-ray absorption spectroscopic measurements were carried out over a series of rare earth materials containing gold nanoparticles. The size of gold nanoparticles varied in the range of 2 to 6nm in the Eu/Dy/Sm/Nd/Gd/La materials. These materials possess surface areas ranging from 29 to 41m2/g with the high phase purity and crystallinity of the support (Eu/Dy/Sm/Nd/Gd/La) materials. An X-ray absorption fine structure (XANES, EXAFS) technique was used in obtaining critical information about the atomic distances, bonding and neighbouring environment for gold atoms in the rare earth Eu/Dy/Sm/Nd/Gd/La oxide materials for understanding the typical characteristics and structure of gold nanoparticles in these materials. © 2007, Elsevier Ltd.
Gov't Doc #: 1123
ISSN: 1381-1169
Appears in Collections:Journal Articles

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