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Electrochemical Properties of Nickel Oxide Nanoparticles Loaded Poly(o-toluidine) Composites
Shanmugasundaram Komathi,Pothum Selvi,Paramasivam Manisankar,Anantha Iyengar Gopalan,이광필 한국전기화학회 2011 한국전기화학회지 Vol.14 No.1
New nanocomposites, composed of poly(o-toludine) (POT) and nickel oxide nanoparticles (NiO-NPs), were prepared through oxidative polymerization of o-toludine (OT) in the presence of NiO-NPs. Films of NiO/POT were prepared with different amount of NiO-NPs (x) and different concentrations of OT (y) and designated as NiO(x)/POT(y) nanocomposites (x = amount of NiO-NPs (mg), y = concentration of OT (mM)). Field emission scanning electron microscopy images revealed that NiO-NP_s have nanorod like morphology. The two peaks, 0.39 V and 0.77V,are attributed to the redox conversion of leucoemeraldine to emeraldine and emeraldine to fully oxidized forms of POT, respectively. Electroactivity of the NiO(x)/POT(y) films showed dependence on x and y. Efficient electrocatalysts could be obtained by tuning x and y.