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In situ synthesis of Pt nanoparticles in SBA-15 by encapsulating in modified template micelles: size restricted growth within the mesochannels
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK), Inorganic and Structural Chemistry.
2008 (English)In: Journal of Materials Chemistry, ISSN 0959-9428, E-ISSN 1364-5501, Vol. 18, no 15, 1765-1770 p.Article in journal (Refereed) Published
Abstract [en]

A truly in situ and simple method is developed for nanoparticle incorporation within the mesochannels of SBA-15 involving dispersion of metal precursors in surfactant-modified polymer micelles. The diffusion of the precursor within the micellar structure is aided by interaction with the cationic head group of the surfactant leading to a unique method to facilitate the formation of highly disperse, uniform nanoparticles molded by the walls of the mesochannels. The nanoparticle incorporated mesoporous material has a highly enhanced surface area and adsorption capabilities in comparison to its parent materials without any pore blockage which makes this method ideal for the preparation of nanocatalysts.

Place, publisher, year, edition, pages
2008. Vol. 18, no 15, 1765-1770 p.
Keyword [en]
mesoporous silica, selective hydrogenation, catalytic-properties, triblock copolymers, ionic surfactants, aqueous-solutions, block-copolymers, cinnamaldehyde, nanocrystals, aldehydes
National Category
Physical Sciences
URN: urn:nbn:se:su:diva-58556DOI: 10.1039/b717991jISI: 000254648100007OAI: diva2:421223
authorCount :4Available from: 2011-06-08 Created: 2011-06-03 Last updated: 2011-06-08Bibliographically approved

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