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An aqueous, alkaline route to titanate nanotubes under atmospheric pressure conditions

By D.V. Bavykin, B.A. Cressey, M.E. Light and F.C. Walsh


A significant reduction in the temperature for alkaline synthesis of titanate nanotubes is reported. Nanotubular titanates have been synthesized from TiO2 at 100 ?C in a mixture of concentrated, aqueous solutions of KOH and NaOH. After 48 h of refluxing, essentially complete conversion was achieved. For a given temperature, the composition of KOH and NaOH in the binary mixture was chosen to achieve a particular concentration of Ti(IV), which favoured the formation of nanotubes. The morphology, surface area and crystal structure of the titanate nanotubes produced were similar to those produced in a solution of pure NaOH at a higher temperature (?140 ?C)

Topics: QC, QD, TP
Year: 2008
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Provided by: e-Prints Soton
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