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|Title:||Self-aligned growth of hexagonal TiO2 nanosphere arrays on α-MoO3 (010) surface|
|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. https://doi.org/10.1021/cm034313f|
|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|
|Appears in Collections:||Staff Publications|
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