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Periodic binary Si:Ti, Si:Al mixed macroporous oxides with ultra-high heteroatom loading: a facile sol-gel approach

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Show simple item record Hant, Steven M. Attard, George S. Riddle, Rodney Ryan, Kevin M. 2013-03-25T14:39:50Z 2013-03-25T14:39:50Z 2005
dc.description peer-reviewed en_US
dc.description.abstract Highly ordered macroporous mixed metal oxides were prepared with very high mixed metal ratios using an optimized silicon alkoxide prehydrolysis process. The homogenous solutions completely filled the interstitial voids in polymethylmethacrylate (PMMA) artificial opal templates. Subsequent template removal resulted in highly ordered aluminosilicate and titanosilicate inverse opal pore networks. The optimized process allowed the fabrication of periodic binary metal oxide frameworks with 2:1 Si:Al loadings and 1:1 Si:Ti loadings. The mixed metal oxides did not show any phase segregation during high temperature template removal as evidenced by X-ray diffraction (XRD), energy dispersive X-ray analysis (EDX) and Fourier transform infrared spectroscopy (FT-IR). The as formed macroporous metal oxides demonstrate excellent substrate adherence and mechanical stability and showed refractive index modulation in direct relation to the silicon/heterometal ratio in the precursor sol. en_US
dc.language.iso eng en_US
dc.publisher American Chemical Society en_US
dc.relation.ispartofseries Chemistry of Materials;17(6), pp. 1434-1440
dc.rights This document is the unedited author's version of a Submitted Work that was subsequently accepted for publication in Chemistry of Materials 17(6), pp. 1434-1440, copyright © American Chemical Society after peer review. To access the final edited and published work, see en_US
dc.subject sol-gel en_US
dc.subject colloidal crystal templating en_US
dc.subject inverse opal en_US
dc.subject mixed oxide en_US
dc.subject aluminium en_US
dc.subject titanium en_US
dc.title Periodic binary Si:Ti, Si:Al mixed macroporous oxides with ultra-high heteroatom loading: a facile sol-gel approach en_US
dc.type info:eu-repo/semantics/article en_US
dc.type.supercollection all_ul_research en_US
dc.type.supercollection ul_published_reviewed en_US
dc.contributor.sponsor EPSRC en_US
dc.contributor.sponsor Industrial Host Fellowship en_US
dc.contributor.sponsor Merck Chemicals Ltd., en_US
dc.contributor.sponsor European 5th Framework en_US
dc.rights.accessrights info:eu-repo/semantics/openAccess en_US

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