The Microstructure of Polyaniline Coatings Electropolymerized on Pb Substrate in Aniline+Oxalic Acid Electrolyte
The electropolymerizition of polyaniline (PANI) on Pb substrate was performed by potentiostatic or galvanostatic method in aniline＋oxalic acid electrolyte. The PANI coatings were characterized by FTIR, XRD and SEM methods. The results showed that the PANI coatings have a crystalline-amorphous composite structure whose degree of crystallinity is about 30%~50%. They belong to a conducting emeraldine salt form and contain varied amounts of water (hydrated PANI salt). The PANI coating synthesized at low current density is in a more reduced state. There is a fibrillar-like morphology for the PANI coatings electrodeposited on Pb substrate.
Zhengyi Jiang and Chunliang Zhang
J. M. Long et al., "The Microstructure of Polyaniline Coatings Electropolymerized on Pb Substrate in Aniline+Oxalic Acid Electrolyte", Advanced Materials Research, Vols. 97-101, pp. 1301-1305, 2010