Synthesis of Pt-Ru-Polyaniline Nanocomposite in Micro Emulsion Medium of SDS as Sensor Electrode

Polyaniline- Pt-Ru nanocomposite is prepared by in situ oxidative polymerization of aniline and reduction of Pt+4 and Ru+3 ions into Pt and Ru nanoparticles. The polymerization of aniline was carried out in the presence of K2PtCN6 [Potassium Hexa Cyano Platinate (IV)] and Ruthenium (III) nitrosyl nitrate (Ru(NO)(NO3)3 )as oxidizing agents. During the reaction aniline monomers undergo oxidation and form polyaniline (PANI) whereas the reduction of cations, result the formation of Pt and Ru nanoparticles. Nano-sized Pt and Ru particles were prepared by controlledreduction of precursors in micro emulsion medium, stabilized with the anionic surfactant (SDS). Micro emulsion solution acts as both emulsifier and dopant to obtain stable nanocomposite. PANI-SDS-Pt/Ru nanocomposite is characterized by FT-IR spectroscopy , scanning microelectronic microscopy (SEM) and CV for sensing trace amounts of mehanol.