Prakash, S. and Rao, C.R.K. and Vijayan, M. (2009) Polyaniline–polyelectrolyte–gold(0) ternary nanocomposites: Synthesis and electrochemical properties. Electrochimica Acta, 54 (24). pp. 5919-5927. ISSN 0013-4686

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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 compositeswere adsorbed on a GC electrode and used for sensing dopamine. The composites are useful in sensing as low as 0.05mM concentration of dopamine at lower potential values compared to some binary PAni–Au nanocomposites.

Item Type: Article
Uncontrolled Keywords: Polyelectrolyte; Polyaniline; Gold nanoparticles; Sensing Dopamine
Subjects: Electrochemical Materials Science
Depositing User: TTBD CECRI
Date Deposited: 02 Apr 2012 05:24
Last Modified: 02 Apr 2012 05:24

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