Title

Nanoceria-Pt Composite Electrodes For Alcohol Electrooxidation In Direct Alcohol Fuel Cells

Abstract

There has been a growing concern about finding alternative sources of energy to replace current fossil fuel dependency. As an alternative, direct alcohol fuel cells (DAFC) appear to be a promising solution. A common byproduct of the electrochemical oxidation of alcohols is carbon monoxide. Unfortunately, carbon monoxide binds very strongly to the platinum anode, poisoning the electrode. CeO 2 has shown a great ability to store and release oxygen since the cerium atom reversibly undergoes oxidation/reduction processes from Ce 4+ to Ce 3+. Results suggest that the ceria's oxygen carrying capacity has a unique ability to reduce CO poisoning. In this study nanocrystalline Pt/CeO 2 composite electrodes were fabricated to investigate the electrochemical oxidation of methanol and ethanol. It was observed that the catalytic performance oscillated with age. These results suggest that the catalytic effect depends greatly on the redox state of the ceria particles.

Publication Date

12-1-2011

Publication Title

ACS National Meeting Book of Abstracts

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

Socpus ID

84861035792 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84861035792

This document is currently not available here.

Share

COinS