12026-28-7Relevant articles and documents
Reactions of titanium oxides with water molecules. A matrix isolation FTIR and density functional study
Shao, Limin,Zhang, Luning,Chen, Mohua,Lu, Hao,Zhou, Mingfei
, p. 178 - 184 (2001)
Reactions of titanium dioxides with water molecules have been studied by matrix isolation infrared and density functional theoretical calculations. In solid argon, titanium dioxide molecules reacted with water to form OTi(OH)2 molecules spontaneously on annealing. The potential energy surface along the TiO2+H2O→OTi(OH)2 reaction path was calculated. Although titanium dioxide-water complex was predicted to be stable, this complex was not observed due to low energy barrier and high exothermicity for the hydrolysis reaction. Evidence is also presented for the formation of OTi-OH2 complex.
Metatitanic acid pseudomorphs after titanyl sulfates: Nanostructured sorbents and precursors for crystalline titania with desired particle size and shape
Klementova, Mariana,Motlochova, Monika,Boha?ěk, Jaroslav,Kupcí k, Jaroslav,Palatinus, Lukas,Plizingrova, Eva,Szatmary, Lorant,Sǔbrt, Jan
, p. 6762 - 6769 (2017)
A new preparation method for the synthesis of TiO2 microrods in aqueous media starting with solid hydrated titanyl sulfate crystals with defined morphology is presented. The method is based on the extraction of sulfate ions from the crystals and their replacement with hydroxyl groups in aqueous ammonia solution leaving the Ti?O framework intact. The particle size and morphology of the starting hydrated titanyl sulfate is closely preserved in the pseudomorphs of amorphous metatitanic acid including such details like the layered structure of the original hydrated titanyl sulfate crystals. When annealed up to 1200 °C, the rod-like morphology of particles is retained, while the phase composition changes to anatase/rutile. The rod-like particles of metatitanic acid possess excellent sorption properties toward radionuclides. The mechanism of pseudomorph formation is discussed based on the structures of the precursors, including the hitherto unknown structure of titanyl sulfate dihydrate determined by electron diffraction tomography.
Catalytic material and method of production thereof
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Page/Page column 10-11, (2009/06/27)
The present invention features a catalytic material which includes a metal catalyst anchored to a nano-sized crystal containing a metal oxide. Furthermore, the present invention features a method of producing the catalytic material described herein. Finally, the present invention features using the catalytic material for removing contaminants and for getting the desired products.