Synthesis of nanoparticles and nanofibers of polyaniline by potentiodynamic electrochemical polymerization.
Potentiodynamic electrochemical synthesis was used to controllably synthesize nanofibers (mean diameter 48 nm) and/or nanoparticles (mean diameter 88 nm) of polyaniline (PANI) on gold electrodes. The films were characterized by cyclic voltammetry (CV), field emission gun scanning electron microscopy (FEG-SEM) and atomic force microscopy (AFM). The type and dimensions of the nanostructures depend on deposition conditions such as monomer concentration and scan rate. This study shows that the nucleation and growth steps play a key role on the film development and its nano-morphology.
Alan G. MacDiarmid Institute for Innovation and Business and National Nanotechnology Laboratory for Agribusiness (LNNA), Embrapa Agricultural Instrumentation, C.P. 741, 13560-970 São Carlos-SP, Brazil.
Miguel G
MG
Xavier
Everaldo C
EC
Venancio
Ernesto C
EC
Pereira
Fabio L
FL
Leite
Edson R
ER
Leite
Alan G
AG
MacDiarmid
L H C
LH
Mattoso
D000814:Aniline Compounds / Q000737:chemistry*; D055664:Electrochemical Techniques; D004566:Electrodes; D006046:Gold / Q000737:chemistry; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D053758:Nanoparticles / Q000737:chemistry / Q000648:ultrastructure; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry
D000814:Aniline Compounds; D011108:Polymers; C416807:polyaniline; D006046:Gold