Ternary nanocomposite SWNT/WO3/PANI thin film electrodes for supercapacitors

Date

2016-02-15

Author

Yuksel, Recep
Durucan, Caner
Ünalan, Hüsnü Emrah

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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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We describe a simple and fast process for the fabrication of ternary nanocomposite supercapacitor electrodes. In this work, thin film supercapacitor electrodes made up of binder-free single walled carbon nanotube (SWNT) thin films were deposited onto glass substrates by vacuum filtration followed by stamping method. Next, tungsten oxide (WO3) and polyaniline (PANI) were electrodeposited on the SWNT thin films. Combination of SWNTs and pseudocapacitive WO3 and PANI created a synergistic and complementary effect, which enhanced the electrochemical energy storage capacity. A specific capacitance of 28.5 mF/cm(2) was obtained at a current density of 0.13 mA/cm(2). Ternary nanocomposite thin film supercapacitor electrodes showed good capacity retention (76%), limited by the PANI stability, after 2000 cycles.

Subject Keywords

Single walled carbon nanotubes, Tungsten oxide; Polyaniline, Supercapacitors, Ternary nanocomposites, Electrodeposition

URI

https://hdl.handle.net/11511/43085

Collections

Department of Metallurgical and Materials Engineering, Article