Electrochemical synthesis of polyaniline nanoparticles in the presence of magnetic field and erbium chloride

The uniform polyaniline nanoparticles with size of about 80 nm were electropolymerized using the method of constant potential of 0.7 V. The effects of erbium chloride and magnetic field on properties of polyaniline deposited on two different platinum electrodes were investigated. The resulting films were characterized by FT-IR, UV–vis spectra and scanning electron microscope (SEM). The experimental results show that the magnetic field has an orientation effect on polyaniline chain and there exists the interaction between Er³⁺ and polyaniline chain due to the electrostatic interaction. The longer polymerization time and the higher concentration of erbium chloride can lead to the more distinct morphology of polyaniline films.