Adsorption

Polymerization

Composite number

Engineering

Nanoparticle

Electrochemistry

Conductive polymer

Materials science

Nanocomposite

Computer science

Polyaniline

Chemical engineering

Ternary operation

Physical chemistry

Polymer

Polyaniline nanofibers

Nanotechnology

Organic chemistry

X-ray photoelectron spectroscopy

Composite material

Chemistry

Programming language

Polyelectrolyte

Electrode

Electrochimica Acta

Ternary composites based on polyaniline (PAni), a polyelectrolyte-namely poly(diallyldimethylammoniumchloride) (PDDMAC) and gold (Au(0)) nanoparticles have been formulated and synthesized where the high concentration of PDDMAC acted as medium of reaction. The nanocomposites are characterized by FT-IR, UV–vis, XRD, XPS, SEM, AFM and TEM techniques. XRD showed the presence of all three viz., polyaniline, PDDMAC and Au(0) components in the ternary system. The composites exhibited higher conductivities in the range 26 × 10−6 to 217 × 10−6 S/cm compared with the binary composite of PAni–PDDMAC. The ternary composites were adsorbed on a GC electrode and used for sensing dopamine. The composites are useful in sensing as low as 0.05 mM concentration of dopamine at lower potential values compared to some binary PAni–Au nanocomposites.

Polyaniline–polyelectrolyte–gold(0) ternary nanocomposites: Synthesis and electrochemical properties