1. Hydrothermal synthesis and electrochemical characterisation of nano SnO2-V2O5-CNT composites.
- Author
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Venugopal, N, Saiprakash, P K, and Mohan Rao, M
- Abstract
SnO 2 -V2 O5 composite oxides in three different ratios 1:1, 1:2 and 2:1 were prepared by a hydrothermal method. These synthesised composites were characterised by X-ray diffraction, transmission electron microscopy, scanning electron microscopy and Raman spectra. The results showed that the hydrothermal method was easy and efficient for synthesising highly dispersed SnO2 nanoparticles on V2 O5 . The electrochemical property of the SnO2 -V2 O5 -CNT composites has been investigated. The specific capacitance of the new composites was significantly improved (156·25 F g-1 ) compared to the single metal oxides. The high capacitance was mainly derived from the specific surface area and pore size effect of CNTs and the pseudo-capacitance of SnO2 -V2 O5 . Therefore, the SnO2 -V2 O5 -CNT nanocomposites can be a potential electrode materials applied in the capacitors. [ABSTRACT FROM AUTHOR]- Published
- 2011
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