Preparation And Properties Of Poly(3-(4-fluorophenyl)thiophene)-based Nanocomposites

Conductive polymers has attracted wide attention because of their conductivity, facile synthesis approaches, good environmental stability and promising prospects of application in electrode materials, optical devices, sensor, metal anticorrosion, electrocatalysis fields. Among all the conductive polymers, Poly(3-(4-fluorophenyl)-thiophene) (PFPT) can be used as typeШelectrode material of supercapacitor for the reason of its improvement on both p-doping and n-doping performance, PFPT has some inevitable shortcomings such as the relatively small''theoretic SC''(1) RuO2 has high energy density. First, Hydrous RuO2 particles were obtained by mixing RuCl3·xH2O with alkali at room temperature. The RuO2 particles had an excellent dispersion in CHCl3 after surface modifying by Silence Coupling Agent (KH-550) at ambient temperature. PFPT/RuO2 nanocomposites were obtained via chemical polymerization with FeCl3 as oxidant. The structure and morphology of the PFPT/RuO2 nanocomposite material were investigated by FT-IR, SEM, XRD et al. FT-IR conformed the association between PFPT and RuO2 particle by intermolecular new bond. The electrochemical properties of resultant material were employed by cyclic voltammetry and galvanostatic charge-discharge methods in 0.5 mol/L H2SO4. Electrochemical data showed pure modified RuO2 with a specific capacitance of 336 F/g. Nevertheless, the specific capacitance of nanocomposite material is higher (up to 390 F/g) than pure RuO2 modified when only RuO2 considered.(2) Carbon nanotubes have good conductivity and high electric-double-layer capacitance performance. Nanocomposite of PFPT with MWCNTs was electrochemically synthesized by direct oxidation of FPT in 0.02 mol/L boron tri?uoridediethyl etherate (BFEE) by using potentiostat method. SEM conformed that the morphology of PFPT deposited on MWCNTs is"Tetrapod-like", UV-Vis spectrum indicated that PFPT compositions red shifted comparing with PFPT obtained by chemical oxidantion method. Composite were employed by cyclic voltammetry and galvanostatic charge-discharge methods indicated that the electrochemical properties and the specific capacitance had the most enhancements in the 1 mol/L Bu4NBF4 acetonitrile electrolyte. (3) One dimension structure PFPT fibres materials were obtained by Electrochemically Polymerization and Chemical Vapor Polymerization methods on anodic aluminum oxide (AAO) templates. One dimension structure PFPT tubes, half full tubes and rods were obtained with different ECP time 1000 s, 4500 s, 6500 s. PFPT tubes were obtained also by VPP method.