Comparison of electrocatalytic activity of poly(p-aminophenol) Film Supported Au-M (M= Pt, Cu and Ag) bimetallic nanoparticles for oxidation of sodium borohydride
Bildiriler > Tam Metin Bildiri · 2013
Yazarlar: Şükriye KARABİBEROĞLU, Zekerya DURSUN
Nanotechnology 2013: Advanced Materials, CNTs, Particles, Films and Composites - 2013 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2013, Amerika Birleşik Devletleri, Uluslararası, Davetli Konuşmacı, Tam Metin Bildiri, 2013-2013, Scopus, cilt 1, ss 566-569
Özet
A poly (p-aminophenol) film (PPAP) and bimetallic nanoparticles modified polymer film galssy carbon electrodes (GCE), Au-Pt/PPAP/GCE, Au-Ag/PPAP/GCE and Au-Cu/PPAP/GCE were prepared by electrochemical techniques. The modified electrode surfaces were characterized using scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The electrocatalytic activities of modified PPAP/GC and bulk electrodes were investigated for borohydride oxidation in alkaline media and the response of electrodes were compared with each other from the corresponding voltammetric curves. There was no any oxidation take place on bare GCE, PPAP/GCE and Cu/PPAP/GCE in the presence of sodium borohydride. Au-Pt bimetallic modified PPAP/GGCE showed higher catalytic activity toward sodium borohydride in terms of the manner of both peak potential and peak current.