Kinetics of alkali metal ion exchange into nanotubular and nanofibrous titanates


Bavykin, Dmitry V. and Walsh, Frank C. (2007) Kinetics of alkali metal ion exchange into nanotubular and nanofibrous titanates. The Journal of Physical Chemistry C, 111, (40), 14644-14651. (doi:10.1021/jp073799a).

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Original Publication URL: http://dx.doi.org/10.1021/jp073799a

Description/Abstract

The kinetics of intercalation of Li+, Na+, K+ and Cs+ cations between the layers of titanate nanotubes and nanofibres have been studied in an aqueous suspension of nanotubes at 25ºC. The rate of intercalation was found to be similar for different cations and depended on the length of the nanotubes. The decrease in nanotube length resulted in a higher rate of ion-exchange, indicating that the transport of cations in titanate nanotubes occurred probably along their length. In contrast, the transport of cations in titanate nanofibres probably dominated in the direction perpendicular to length. Correlations between the rate of intercalation and the crystal structure modification following intercalation have been established for nanotubular and nanofibrous titanates.

Item Type: Article
ISSNs: 1932-7447 (print)
Related URLs:
Keywords: diffusion coefficient, hydrothermal synthesis, nanomaterials, TiO2, titanates.
Subjects: T Technology > TP Chemical technology
Q Science > QD Chemistry
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Engineering Materials & Surface Engineering
ePrint ID: 48933
Date Deposited: 18 Oct 2007
Last Modified: 27 Mar 2014 18:32
Contact Email Address: D.Bavykin@soton.ac.uk
URI: http://eprints.soton.ac.uk/id/eprint/48933

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