ISSN:
1040-0397
Keywords:
Modified electrodes
;
Electrocatalysis
;
Platinum deposition
;
Ethanol
;
Chemistry
;
Polymer and Materials Science
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Notes:
A platinum-based chemically modified glassy carbon electrode (Pt-CME) was characterized in acidic medium by X-ray photoelectron spectroscopy, scanning electron microscopy and electrochemical techniques. A uniform distribution of platinum microparticles of different form and size (hexagonal, grain-like and globular) was present on the surface of glassy carbon. The chemical species present on the electrode surface changed upon polarization. At higher potential values (1.5 V) species such Pt(OH)2, Pt(OH)ads and Pt(OH)4 formed at lower potential values were transformed into PtO, PtOads and PtO2 respectively. A few aspects of the electrooxidation of ethanol in acidic medium were investigated on the Pt-CME described.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/elan.1140080509
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