Journal
ANALYTICAL LETTERS
Volume 47, Issue 1, Pages 117-133Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/00032719.2013.832277
Keywords
Electrocatalyst; Kinetic study; Methanol electrooxidation; Platinum nanoparticle; Polypyrrole
Categories
Funding
- Ferdowsi University of Mashhad, Mashhad, Iran
Ask authors/readers for more resources
A nanocomposite surface coating was prepared by electropolymerization of pyrrole by cycling the electrode potential between -0.8 and 0.8V (vs. SCE) on the surface of a glassy carbon electrode (GCE). After formation of the polypyrrole (PPy) matrix, this surface was potentiostatically coated with platinum nanoparticles at constant potential of -0.2V (vs. SCE). The resulting electrode is referred to as GCE/PPy/Pt. The microscopic structure and morphology of the PPy film were characterized by scanning electron microscopy. The platinum nanoparticles were uniformly dispersed in the PPy matrix, as confirmed by transmission electron microscopy. The electrochemical and catalytic activities of the GCE/PPy/Pt were compared with GCE/Pt in 0.3molL(-1) HClO4 solution. The electrooxidation of methanol on the GCE/PPy/Pt was studied by means of electrochemical techniques. The modified electrode exhibited a significant electrocatalytic activity for methanol oxidation compared to the other electrodes used in this study. The kinetics of methanol oxidation on GCE/PPy/Pt were studied.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available