Low-temperature synthesis of titanate nanotubes in aqueous KOH
Bavykin, Dmitry V., Cressey, Barbara A. and Walsh, Frank C. (2007) Low-temperature synthesis of titanate nanotubes in aqueous KOH. Australian Journal of Chemistry, 60, (2), 95-98. (doi:10.1071/CH06359).
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Although hydrothermal alkaline treatment of TiO2 in a concentrated, aqueous solution of KOH usually results in the
formation of solid fibrous titanates, analysis of the temperature dependence of Ti(iv) concentration in KOH solution and
comparison of these data with that for NaOH solution suggests that, at low temperatures, the treatment of TiO2 with KOH
may result in formation of titanate nanotubes. This result was confirmed by 12 days treatment of TiO2 in 10 mol dm−3
KOH at 56◦C, resulting in the formation of nanotubular titanates with similar morphology to those produced in a shorter
time at higher temperatures using NaOH.The mechanism of nanotube formation and the necessary conditions of nanotube
phase formation are considered.
|Subjects:||T Technology > TP Chemical technology
Q Science > QD Chemistry
Q Science > QC Physics
|Divisions:||University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
|Date Deposited:||17 May 2007|
|Last Modified:||27 Mar 2014 18:30|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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