Synthesis of ordered mesoporous NiO with crystalline walls and a bimodal pore size distribution

Jiao, Feng and Hill, Adrian H. and Harrison, Andrew and Berko, Aaron and Chadwick, Alan V. and Bruce, Peter G. (2008) Synthesis of ordered mesoporous NiO with crystalline walls and a bimodal pore size distribution. Journal of the American Chemical Society, 130 (15). pp. 5262-5266. ISSN 0002-7863. (Access to this publication is restricted)

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http://dx.doi.org/10.1021/ja710849r

Abstract

A mesoporous solid with crystalline walls and an ordered pore structure exhibiting a bimodal pore size distribution (3.3 and 11 nm diameter pores) has been synthesized. Previous attempts to synthesize solids with large ordered mesopores by hard templating focused on the preparation of templates with thick walls (the thick walls become the pores in the target materials), something that has proved difficult to achieve. Here the large pores (11 nm) do not depend on the synthesis of a template with thick walls but instead on controlling the microporous bridging between the two sets of mesopores in the KIT-6 template. Such control determines the relative proportion of the two pore sizes. The wall thickness of the 3D cubic NiO mesopore has also been varied. Preliminary magnetic characterization indicates the freezing of uncompensated moments or blocking of superparamagnetism.

Item Type: Article
Subjects: Q Science
Divisions: Faculties > Science Technology and Medical Studies > School of Physical Sciences > Functional Materials Group
Depositing User: Alan Chadwick
Date Deposited: 15 Apr 2009 10:28
Last Modified: 14 May 2014 11:03
Resource URI: http://kar.kent.ac.uk/id/eprint/8532 (The current URI for this page, for reference purposes)
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