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Journal of Nanoparticle Research
Published in: Journal of Nanoparticle Research 11/2014

01-11-2014 | Research Paper

Preparation and characterization of Au@TiO2 core–shell hollow nanoparticles with CO oxidation performance

Authors: Ningning Zhou, Beibei He, Xiaohong Wang, Zhiyu Hu

Published in: Journal of Nanoparticle Research | Issue 11/2014

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Abstract

Au@TiO2 core–shell hollow nanoparticles were prepared by a simple hydrothermal method without surfactants or templates. The core–shell structure materials were characterized by transmission electron microscopy, X-ray powder diffraction, scanning electron microscopy, and specific surface area of the test (BET). The catalytic activity was tested in a stainless reactor with a fixed bed and connected with a gas chromatograph. The results show that the microstructure, crystallography, and morphology were correlated with the hydrothermal reaction time and temperature, and the properties of the solvent. The crystallinity degree of TiO2 and the particle size increased with the reaction time and temperature. Particles with different morphologies can be obtained when using different solvents. The size of microsphere can be controlled easily by changing the amount of TiF4. This material exhibited the complete CO conversion temperature to be about 130 °C and no deactivation was observed after 1,000 min reaction.
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Metadata
Title
Preparation and characterization of Au@TiO2 core–shell hollow nanoparticles with CO oxidation performance
Authors
Ningning Zhou
Beibei He
Xiaohong Wang
Zhiyu Hu
Publication date
01-11-2014
Publisher
Springer Netherlands
Published in
Journal of Nanoparticle Research / Issue 11/2014
Print ISSN: 1388-0764
Electronic ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-014-2676-8

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