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Calcination effect of nanosized ceria in ceria–platinum composite electrode for direct ethylene glycol oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
40984 45873 2012 7 PDF Available
Title
Calcination effect of nanosized ceria in ceria–platinum composite electrode for direct ethylene glycol oxidation
Abstract

CeO2 nonsoluble in H2SO4 has been prepared using thermal decomposition techniques and has been characterized by X-ray. The particle size was found to increase as the calcination temperature increases. Nano crystalline Pt/CeO2/GC composite electrodes were fabricated and examined using SEM, EDX analysis and electrochemical techniques. The reactivity of the modified electrode has been tested for ethylene glycol (EG) oxidation in acidic media using cyclic voltammetric and chronoamperometric technique. The Pt/CeO2/GC electrodes were found to be more reactive towards EG oxidation and more stable against poisoning process in comparison to Pt/GC electrode. The performance of the electrodes was found to depend on the ratio of CeO2:Pt as well as on the calcination temperature during CeO2 preparation.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (57 K)Download as PowerPoint slideHighlights► CeO2 insoluble in acidic media has been prepared using thermal decomposition technique. ► Oxide particle size was found to increase with the calcination temperature. ► At optimum conditions, Pt/CeO2/GC electrode shows superior performance for EG oxidation compared to Pt/GC electrode. ► The activity of the modified electrode depends on calcination temperature as well as CeO2:Pt ratio.

Keywords
Ethylene glycol oxidation; Nanosized ceria; Pt; Composite electrode
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Calcination effect of nanosized ceria in ceria–platinum composite electrode for direct ethylene glycol oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 421–422, 16 April 2012, Pages 135–141
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us