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Design of Pt catalyst with high electrocatalytic activity and well tolerance to methanol for oxygen reduction in acidic medium

Paper ID Volume ID Publish Year Pages File Format Full-Text
49826 46769 2012 4 PDF Available
Title
Design of Pt catalyst with high electrocatalytic activity and well tolerance to methanol for oxygen reduction in acidic medium
Abstract

The low-content deposition of Pt on the working electrode during the electrochemical test showed high activity for oxygen reduction reaction (ORR) and much low activity for methanol oxidation reaction (MOR), indicating that there exists a difference in the ORR and MOR on the surface of few Pt nanoparticles . Based on this difference, we designed and prepared the Pt/carbon nanotube catalyst with ca. 0.86 wt.% Pt, which exhibited high ORR activity and well tolerance to methanol in acidic media, showing a good potential application for a future acidic direct methanol fuel cell device.

Graphical abstractPt/MCNT catalyst with ultra-low Pt loading exhibits high oxygen reduction reaction (ORR) activity and well tolerance to methanol in acidic media.Figure optionsDownload full-size imageDownload as PowerPoint slideHighlights► The dissolution of the counter electrode Pt in acidic media is tested quantitatively. ► Activity difference of Pt for oxygen reduction (ORR) and methanol oxidation is found. ► Pt/carbon nanotube catalyst(Pt/MCNT) with low Pt loading is designed and prepared. ► As-prepared Pt/MCNT exhibits high ORR activity and well tolerance to methanol.

Keywords
Direct methanol fuel cell; Methanol oxidation; Oxygen reduction reaction; Platinum catalyst
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Design of Pt catalyst with high electrocatalytic activity and well tolerance to methanol for oxygen reduction in acidic medium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 29, 5 December 2012, Pages 11–14
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