Highly catalytic activity of platinum-gold particles modified poly(p-aminophenol) electrode for oxygen reduction reaction
Makaleler > Tam Makale · 2016
Yazarlar: Şükriye KARABİBEROĞLU, Zekerya DURSUN
JOURNAL OF SOLID STATE ELECTROCHEMISTRY, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2016, cilt 20, ss 2009-2018
DOI: 10.1007/s10008-016-3201-z
Özet
A highly active electrocatalyst has been developed based on poly(p-aminophenol) polymer film modified with Pt-Au bimetallic particles on a glassy carbon electrode (Pt-Au/PPAP/GCE) for electrocatalytic reduction of oxygen. The surface morphology and chemical analyses of the modified electrodes have been revealed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray spectroscopy (EDX), and electrochemical impedance spectroscopy (EIS). The Pt-Au/PPAP/GCE has shown the best electrocatalytic activity towards O-2 reduction in comparison to the other used electrodes. The rotating disk electrode (RDE) studies have indicated that the oxygen reduction reaction takes place via almost four electrons on the Pt-Au/PPAP/GCE.