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Through the use of titania–tin oxide nanocomposites, an enhanced anatase-to-rutile phase transformation is achieved, while avoiding appreciable particle growth. Upon the addition of SnO 2 , the phase transformation temperature fell, reaching a minimum value at 18vol.% of tin oxide, before increasing. Neither anatase nor rutile phase particles showed exaggerated growth. SnO 2 particles...
We report the fabrication of cubic Ia3d mesoporous silica thin films via a new approach involving mesophase transformation induced by the degradation of organic moiety from the film during calcination. The mesoporous silica film is synthesized using tetraethyl orthosilicate (TEOS) as a silica source and a diblock copolymer (Brij-30) as a structure-directing agent under acidic conditions. Control of...
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