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Issue 1, 2014
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Synthesis of non-siliceous mesoporous oxides

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Abstract

Mesoporous non-siliceous oxides have attracted great interest due to their unique properties and potential applications. Since the discovery of mesoporous silicates in 1990s, organic–inorganic assembly processes by using surfactants or block copolymers as soft templates have been considered as a feasible path for creating mesopores in metal oxides. However, the harsh sol–gel conditions and low thermal stabilities have limited the expansion of this method to various metal oxide species. Nanocasting, using ordered mesoporous silica or carbon as a hard template, has provided possibilities for preparing novel mesoporous materials with new structures, compositions and high thermal stabilities. This review concerns the synthesis, composition, and parameter control of mesoporous non-siliceous oxides. Four synthesis routes, i.e. soft-templating (surfactants or block copolymers as templates), hard-templating (mesoporous silicas or carbons as sacrificial templates), colloidal crystal templating (3-D ordered colloidal particles as a template), and super lattice routes, are summarized in this review. Mesoporous metal oxides with different compositions have different properties. Non-siliceous mesoporous oxides are comprehensively described, including a discussion of constituting elements, synthesis, and structures. General aspects concerning pore size control, atomic scale crystallinity, and phase control are also reviewed.

Graphical abstract: Synthesis of non-siliceous mesoporous oxides

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Publication details

The article was received on 10 May 2013 and first published on 13 Aug 2013


Article type: Review Article
DOI: 10.1039/C3CS60155B
Citation: Chem. Soc. Rev., 2014,43, 313-344
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    Synthesis of non-siliceous mesoporous oxides

    D. Gu and F. Schüth, Chem. Soc. Rev., 2014, 43, 313
    DOI: 10.1039/C3CS60155B

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