Paper Title:
Preparation and Characterization of AuNP/Al2O3 with Bimodal Nanoporous Structure
  Abstract

AuNP (gold nanoparticle) supported by oxide shows a high reactivity for a PROX (preferential oxiation) reaction at low temperature. Au catalysts were usually prepared by conventional methods such as precipitation, impregnation and vapor phase grafting. In this study, we developed a novel method for the preparation of AuNPs supported on a bimodal nanoporous alumina. The AuNPs were prepared in a toluene phase by the modified Brust method. The metal particle size was able to be controlled from 2 to 50 nm via the control of the surfactant concentrations. The resulting materials were characterized by BET, FE-SEM, TEM, and XRD analyses. After calcinations at 700oC, AuNP/Al2O3 catalyst revealed a bimodal nanoporous structure, with the pore sizes of 3.5 and 7 nm, and demonstrated both a high surface area (350 m2/g) and pore volume (0.9 cm3/g).

  Info
Periodical
Solid State Phenomena (Volume 135)
Edited by
Chang Kyu Rhee
Pages
53-56
DOI
10.4028/www.scientific.net/SSP.135.53
Citation
Y. H. Kim, J. B. Joo, W. Y. Kim, J. J. Lee, J. H. Yi, "Preparation and Characterization of AuNP/Al2O3 with Bimodal Nanoporous Structure", Solid State Phenomena, Vol. 135, pp. 53-56, 2008
Online since
February 2008
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: R. Svinka, V. Svinka, G. Bula, T. Juettner, E. Palcevskis
Abstract:Light weight materials are produced according to the aerated concrete technology using slurries. In concentrated suspensions pore formation...
2266
Authors: Yong Kap Park
Abstract:Nanosized α-aluminum oxides have been prepared by hydrolysis of aluminum alkoxides using a sol-gel procedure. The Na(AOT) as a surface...
785
Authors: Yan Qing Chen, Ren Ping Wu
Chapter 2: Engineering Ceramics and Ceramic Composites
Abstract:A new type of double pore size activated alumina/activated carbon multiphase material was made by using waste aluminum slag and activated...
626
Authors: Gang Chen, Chun Hua Yang
Chapter 1: Research on Nano-materials and Nanotechnology
Abstract:Gold nanoparticles (AuNPs) were attached to the surface of alumina particles by an in-situ immobilizing method. SEM and XPS analysis showed...
47
Authors: Мaria S. Petukevich, Yuri F. Ivanov, Oleg L. Khasanov, Edgar S. Dvilis, Alexandra A. Panina
Chapter 1: Chemistry and Physics of Materials, Environmental Materials
Abstract:Phase composition and structure of boron carbide powder with dispersion of particles varying from 30 nanometers to 0.8 micrometers were...
197