Templated Growth of Crystalline Mesoporous Materials: From Soft/Hard Templates to Colloidal Templates

Frontiers in Chemistry
Lei ZhangJie He

Abstract

Mesoporous non-siliceous materials, in particular mesoporous transition metal oxides (m-TMOs), are of interest due to their fascinating electronic, redox, and magnetic properties for a wide range of applications in catalysis and energy storage. Control of the porosity (e.g., pore size, wall thickness, and surface area) and the crystalline degree (e.g., phase composition, crystallinity, and crystal grain size) of m-TMOs are critical for those applications. To crystallize TMOs, high temperature annealing is often needed to remove the amorphous defects and/or tune the compositions of different crystalline phases. This has brought many challenges to surfactant or block copolymer templates used in the process of evaporation-induced-self-assembly to prepare m-TMOs. In this review, we summarize the most recent achievements including the findings in our own laboratory on the use of organosilicate-containing colloids for the templated growth of mesoporous materials. We review a few key examples of preparing crystalline mesoporous oxides using different templating methods. The colloidal templating method by which mesoporous nanostructures can be stabilized up to 1,000°C is highlighted. The applications of m-TMOs and meso metal-oxide hybr...Continue Reading

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Citations

Aug 3, 2019·Chemical Communications : Chem Comm·Tatsuo Kimura, Hirokazu Maruoka
Jan 7, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Fauzan AmriBrian Yuliarto
Jan 23, 2021·Nanoscale·Alejandra Ruiz-ClavijoMarisol Martín-González

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