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

被引:54
作者
Bavykin, Dmitry V. [1 ]
Cressey, Barbara A. [2 ]
Light, Mark E. [3 ]
Walsh, Frank C. [1 ]
机构
[1] Univ Southampton, Sch Engn Sci, Energy Technol Res Grp, Electrochem Engn Lab, Southampton SO17 1BJ, Hants, England
[2] Univ Southampton, Fac Engn Math & Sci, Sci & Engn Elect Microscopy Ctr, Southampton SO17 1BJ, Hants, England
[3] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England
关键词
D O I
10.1088/0957-4484/19/27/275604
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
A significant reduction in the temperature for alkaline synthesis of titanate nanotubes is reported. Nanotubular titanates have been synthesized from TiO2 at 100 degrees 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 (approximate to 140 degrees C).
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页数:5
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