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Research on the Polymerization and Properties of Nanostructured Polypyrrole

Author: HuangZuo
Tutor: LiLiang
School: Wuhan Institute of Technology
Course: Materials Science
Keywords: Polypyrrole Nanotubes Nano paperclip Modified electrode
CLC: TB383.1
Type: Master's thesis
Year: 2011
Downloads: 93
Quote: 0
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Abstract


Conductive polymer has a unique micro- structure and excellent physical and chemical properties and are widely used in many fields , such as nano- electronic devices, optoelectronic devices, electrode materials and metal anti-corrosion . Polypyrrole (Polypyrrole, PPy) has good electrochemical performance , one of the most attention and the most promising conductive polymer . In this issue , we have to Fe (NO 3 ) 3 oxidants, the doped polypyrrole nanotubes synthesized by chemical oxidation of methyl orange (MO) . Through study found that the Fe (NO 3 < / sub >) 3 concentration interested poly pyrrole nanotubes size impact , while the length of stirring time will also affect the shape of the obtained nano - tube . In addition , MO - doped polypyrrole conductive performance is greatly enhanced . Our analysis of these phenomena are made ??. Then, we by cetyltrimethylammonium bromide bromide ( CTAB ) , over - ammonium sulfate ( APS ) , synthesized in reverse microemulsion HCl and pyrrole oil droplets constitute a unique paperclip morphology of poly pyrrole, the reactants and the external conditions of the synthesis process . Various test data show that the concentration of CTAB be a great impact on polypyrrole nano- morphology and conductivity of the paper clip , and the synthesis temperature also affect the formation of nano - paperclip . Finally, we will poly pyrrole nanotubes and nano paperclip coated on the surface of the working electrode , made ??into a polypyrrole modified electrode . Cyclic voltammetry , and polypyrrole nanotubes modified electrode has good redox reversibility , this will be very beneficial to its application in the electrode material . The polypyrrole the paperclip modified electrode redox reversibility relatively poor , but still is quasi- reversible .

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