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Title: Synthesis of silica supported titania nanocomposite in controllable phase content and morphology
Authors: Lim, Y.V.
Fan, H. 
Shen, Z.
Kang, C.H.
Feng, Y. 
Wang, S.
Issue Date: May-2009
Citation: Lim, Y.V., Fan, H., Shen, Z., Kang, C.H., Feng, Y., Wang, S. (2009-05). Synthesis of silica supported titania nanocomposite in controllable phase content and morphology. Applied Physics A: Materials Science and Processing 95 (2) : 555-562. ScholarBank@NUS Repository.
Abstract: The silica supported titania nanocomposite thin films with controllable particle size and phase content were successfully prepared by a convenient post annealing approach involving in solid-solid interfacial reaction. The effects of growth conditions, such as the annealing temperature and silicon concentration on the particle size and phase content, were systematically studied by using Atomic force microscopy (AFM), Raman spectroscopy, X-ray diffraction (XRD), and X-ray spectroscopy (XPS). The results indicate that the silicon concentration is a dominant factor in the morphology, crystallization and phase transformation of these nanocomposites. A mechanism for the high temperature phase transformation is also proposed based on the migration of the oxygen vacancies. © 2008 Springer-Verlag.
Source Title: Applied Physics A: Materials Science and Processing
ISSN: 09478396
DOI: 10.1007/s00339-008-4942-z
Appears in Collections:Staff Publications

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