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Direct alcohol fuel cells: A novel non-platinum and alcohol inert ORR electrocatalyst

Paper ID Volume ID Publish Year Pages File Format Full-Text
48326 46501 2008 7 PDF Available
Title
Direct alcohol fuel cells: A novel non-platinum and alcohol inert ORR electrocatalyst
Abstract

In the present investigation, a series of binary PdxFey/C electrocatalysts for the oxygen reduction reaction (ORR) was synthesized in a very short time by employing a pulse-microwave assisted polyol method. The physico-chemical properties were obtained by employing the techniques of X-ray diffraction (XRD) and transmission electron microscopy (TEM). The electrochemical activity was studied by the aid of the techniques of cyclic voltammetry and rotating disk electrode. Based on the obtained experimental results, it can be deduced that the addition of Fe increases the activity of Pd towards the reaction of oxygen reduction. More precisely, when the molar ratio between Pd and Fe was 3:1, the highest oxygen reduction activity among all the investigated PdxFey/C catalysts was obtained. It was also found that Pd3Fe1/C exhibited an oxygen reduction activity comparable to that of Pt/C, while showed almost no activity for alcohols oxidation. Moreover, in the simultaneous presence of both methanol and oxygen, Pd3Fe1/C displayed an excellent selectivity for oxygen reduction reaction.

Keywords
Oxygen reduction reaction (ORR); PdxFey/C electrocatalysts; Direct alcohol fuel cells (DAFCs); Alcohol crossover
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Direct alcohol fuel cells: A novel non-platinum and alcohol inert ORR electrocatalyst
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 78, Issues 3–4, 7 February 2008, Pages 381–387
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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