6533b82ffe1ef96bd1294fd2

RESEARCH PRODUCT

Enhanced surface area in thermally stable pure mesoporous TiO2

Saúl CabreraJamal El HaskouriPedro AmorósAurelio BeltránM. Dolores MarcosDaniel Beltran‐porter

subject

Materials scienceMineralogyGeneral ChemistryCondensed Matter PhysicsCondensation reactionMesoporous organosilicaHydrolysischemistry.chemical_compoundChemical engineeringchemistryTransmission electron microscopyX-ray crystallographyTitanium dioxideGeneral Materials ScienceThermal stabilityMesoporous material

description

Abstract We describe here for the first time the surfactant-assisted synthesis of thermally stable mesoporous pure TiO 2 having a high surface area. Our synthetic approach to the chemistry of this system is based on the equilibrium between the hydrolysis and condensation reactions of the inorganic species and the organic–inorganic self-assembling processes. The use of titanatrane complexes helps to retard the hydrolysis and condensation reactions, thus allowing us to overcome the difficulties in preparing titanium dioxide mesoporous materials starting from highly reactive Ti-alkoxides. The mesoporous material has been characterized by TEM, XRD and N 2 adsorption–desorption isotherms and displays a typical wormhole-like pore structure.

https://doi.org/10.1016/s1293-2558(00)00057-1