Issue 29, 2009
From the journal:

Journal of Materials Chemistry

Highly-dispersed and thermally-stable NiO nanoparticles exclusively confined in SBA-15: Blockage-free nanochannels

Ming-Yao Cheng,a   Chun-Jern Pana  and  Bing-Joe Hwang*ab  

* Corresponding authors

a Nanoelectrochemistry Laboratory, Department of Chemical Engineering, National Taiwan University of Science and Technology, # 43 Keelung Rd, Sect. 4, Taipei, Taiwan
E-mail: bjh@mail.ntust.edu.tw
Fax: +886-2-27376644
Tel: +886-2-27376624

b National Synchrotron Radiation Research Center, Hsinchu, Taiwan

Abstract

In this work, exclusive formation of metal oxide nanoparticles confined in ordered mesoporous supports was achieved by a hydrophobic encapsulation route illustrated with the NiO/SBA-15 system. Uniform, discrete and thermally-stable NiO nanoparticles are well-distributed in a confined space. The confined nanoparticles possessed high thermal stability, the average size only slightly increasing from 2.83 nm to 3.69 nm after treatment at 900 °C. The NiO-confined nanochannels show no blockages, even though the NiO loading is as high as 18.55 wt%. This blockage-free nanoarchitecture greatly enhances application in catalysis, as demonstrated by the methanation reaction, for which the new catalyst was ∼18.5 times as effective as conventional types.

Graphical abstract: Highly-dispersed and thermally-stable NiO nanoparticles exclusively confined in SBA-15: Blockage-free nanochannels

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Article information

DOI
https://doi.org/10.1039/B902949D
Article type
Paper
Submitted
12 Feb 2009
Accepted
24 Apr 2009
First published
08 Jun 2009

J. Mater. Chem., 2009,19, 5193-5200

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Highly-dispersed and thermally-stable NiO nanoparticles exclusively confined in SBA-15: Blockage-free nanochannels

M. Cheng, C. Pan and B. Hwang, J. Mater. Chem., 2009, 19, 5193 DOI: 10.1039/B902949D

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