Electrochemical properties of the poly(3,4-ethylenedioxythiophene)/single-walled carbon nanotubes composite synthesized by solid-state heating method

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• 作者：Tursun Abdiryim ; Aminam Ubul ; Ruxangul Jamal ; Feng Xu ; Adalet Rahman
• 关键词：Poly(3 ; 4-ethylenedioxythiophene) ; Single-walled carbon nanotubes ; Solid-state heating method ; Supercapacitor
• 刊名：Synthetic Metals
• 出版年：2012
• 出版时间：October, 2012
• 年：2012
• 卷：162
• 期：17-18
• 页码：1604-1608
• 全文大小：772 K

文摘

The poly(3,4-ethylenedioxythiophene)/single-walled carbon nanotubes (PEDOT/SWNTs) composites with content of SWNTs varying from 4 wt % to 12 wt % were prepared by a simple solid-state heating method. The results from FTIR and UV-vis spectra showed that the composites were successfully performed by this method, and the strong interactions between the PEDOT and SWNTs occurred in the composite with 8 wt % SWNTs as compared to other composites. The galvanostatic charge-discharge measurements indicated that the PEDOT/SWNTs composite had higher specific capacitances than PEDOT, and the composite with 8 wt % SWNTs had the highest specific capacitance among the composites. The morphological studies showed that the composite with 8 wt % SWNTs exhibited a mixture of the plate-like PEDOT and nonuniformly distributed SWNTs. The further electrochemical tests on the composite with 8 wt % SWNTs showed that the composite had a high specific capacitance of 188 F g^?1 at 0.5 mA cm^?2 and a capacity retention of 66 % over 1300 cycles.