Abstract
TiO2-derived nanotubes were prepared by hydrothermal treatment of TiO2 powder in NaOH aqueous solution. High-temperature x-ray diffraction (HT-XRD) andthermogravimetry-differential thermal analysis (TG-DTA) demonstrated the formation of TiO2 (B) phase (a metastable polymorph of titanium dioxide) from the nanotubes under heating at ∼800 °C, which indicates the as-prepared nanotubes should be composed of layered titanate, most probably as H2Ti3O7·nH2O (n < 3). Dehydration behavior and phase transformation confirmed by the HT-XRD study have suggested reliable reaction path and have well-solved the contradictions on the nanotube-formation mechanism among previous studies.
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Suzuki, Y., Yoshikawa, S. Synthesis and Thermal Analyses of TiO2-Derived Nanotubes Prepared by the Hydrothermal Method. Journal of Materials Research 19, 982–985 (2004). https://doi.org/10.1557/JMR.2004.0128
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DOI: https://doi.org/10.1557/JMR.2004.0128