Electrochemical Polymerization of Polypyrrole Nanotubes and Nanowires in Ionic Liquid

摘要

Polypyrrole (PPy) nanotubes and nanowires were synthesized through electrochemical polymerization method in nanoporous anodisc aluminum, oxide (Al_2O_3) template. The electrolyte consisted of pyrrole monomer, solvent, and ionic liquid dopant such as BMIMBF_4(1-bulyl-3-methyl imidazolium telra-fluoroborale) or BMIMPF_6(1-bulyl-3-methyl imidazolium hexafluoropho-sphate), which is stable in air and moisture. The length and diameter of PPy nanolubes and nanowires were determined by the synthetic conditions such, as polymerization lime, current, and dopant. The formation of nanotube and nanowire of PPy sample was confirmed by using field emission scanning electron microscope and transmission electron microscope. The UV/Vis and Raman spectra have been investigated for structural properties of the systems. We compare electrical properties of nano size PPy materials with bulky PPy ones prepared in the same chemical conditions.