Synthesis And Properties Of Conducting Polymers And Composites

Polypyrrole(PPy), as a kind of conductive polymer, has gradually become a research hot because of easy synthesis, environmental stability, electrical conductivity, the REDOX performance, less pollution. PPy can be widely applied in the sensors, new energy battery, electromagnetic shielding, metal corrosion and other fields. In recent years, PPy composite materials have attracted great attention. In this thesis, the composite of sulfonated graphene/sulfonated carbon nanotubes/PPy(S-rGE/S-CNT/PPy), the composite of MnO2/ CNT/PPy, and carbon aerogels based on PPy nanotubes are studied.This paper studies on the following three aspects:(1) Graphene and carbon nanotubes(CNT) are sulfonated to increase their hydrophilicity. Then, S-rGE/S-CNT/PPy composites are prepared via the interface polymerization. The morphology and structure of the composites were analyzed. The results show that the S-rGE and S-CNT have good solubility in water and the electrochemical performances of the composites are improved.(2) PPy microtubes are prepared using methyl orange(MO) as a template. Mn O2/ CNT composite materials are prepared by hydrothermal method. Then the composites of MnO2/CNT/PPy are obtained. The morphology and structure of the composites were analyzed. The results show that the composites material has excellent electrical capacitance and cycle performance.(3) Polypyrrole hydrosponges are successfully fabricated using methyl orange(MO) as template and APS as oxidant. Then nitrogen-doped carbon nanotube aerogels are prepared by calcinate PPy hydrosponges at 800 ? under nitrogen atmosphere. The morphology and structure of the as-prepared nitrogen-doped carbon nanotube aerogels are analyzed. The results show that the nitrogen-doped carbon nanotube aerogels possess many interesting characteristics, such as low density, strength, hydrophobic and oleophilic property, flame retardant, good dye adsorption ability. The nitrogen-doped carbon nanotube aerogels has excellent electrical capacitance and cycle performance. It has great potential to fabricate the electrode materials and energy storage materials.