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Title: Self-aligned growth of hexagonal TiO2 nanosphere arrays on α-MoO3 (010) surface
Authors: Yang, H.G.
Zeng, H.C. 
Issue Date: 12-Aug-2003
Citation: Yang, H.G., Zeng, H.C. (2003-08-12). Self-aligned growth of hexagonal TiO2 nanosphere arrays on α-MoO3 (010) surface. Chemistry of Materials 15 (16) : 3113-3120. ScholarBank@NUS Repository.
Abstract: At present there are two basic types of self-assembly of inorganic nanomaterials: surfactant-assisted organization and patterned-substrate deposition. In this paper, we report a novel assembled scheme for fabrication of hexagonal superlattice arrays of anatase TiO2 nanospheres on the (010) crystal plane of α-MoO3 without the assistance of organic surfactants or substrate prefabrication. The growth and self-assembly of TiO2 nanospheres take place simultaneously under hydrothermal conditions at 150-200 °C according to a continuous self-aligned process in which the localized enrichment of hydrolysis product HF (TiF4 is the precursor for TiO2) is believed to play a crucial role in initiating the self-alignment. This "growth-cum-assembly" mechanism has also been validated with our various growth experiments and materials characterization. Key synthetic parameters have been identified and future explorations have been suggested for this ordered scheme.
Source Title: Chemistry of Materials
ISSN: 08974756
DOI: 10.1021/cm034313f
Appears in Collections:Staff Publications

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