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A Novel Structural Mesoporous Alumina/Yttrium Doped Zirconia Nanocrystalline Composite Derived by Solvothermal Approach

Published online by Cambridge University Press:  03 March 2011

Hangrong Chen ,
Xin Michael Wang ,
Jianlin Shia ,
Ping Xiao  and
Dongsheng Yan
Hangrong Chen
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
Xin Michael Wang
Affiliation:
Manchester Materials Science Centre, The University of Manchester and UMIST, Manchester, M1 7HS, United Kingdom
Jianlin Shia*
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
Ping Xiao
Affiliation:
Manchester Materials Science Centre, The University of Manchester and UMIST, Manchester, M1 7HS, United Kingdom
Dongsheng Yan
Affiliation:
State Key Lab of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, China
*
a)Address all correspondence to these authors. e-mail: [email protected]
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Abstract

A novel structural mesoporous alumina (40 mol%)/yttrium doped zirconia nanocrystalline composite has been synthesized by a solvothermal process using ethanol and ethylene glycol as a co-solvent. X-ray diffraction, thermogravimetry/differential scanning calorimetry, Fourier transform infrared, transmission electron microscopy, and nitrogen adsorption are used for the structural characterization. This novel mesoporous alumina/zirconia nanocomposite presents nanocrystalline zirconia particles with a uniform size less than 5 nm surrounded by alumina, forming a kind of core-shell structure after calcined at 800 °C. The mesostructural composite has high surface area (higher than 250 m2/g) and a narrow pore-size distribution of about 3.2 nm throughout the composite sample. The uniformly distributed nanocrystalline zirconia particles and the surrounding wormlike alumina framework act as the inorganic wall for the mesopores.

Keywords

CompositeMicrostructureNanoparticle
Type
Articles
Information
Journal of Materials Research , Volume 20 , Issue 1 , January 2005 , pp. 42 - 47
Copyright
Copyright © Materials Research Society 2004

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