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Ultradispersed platinum nanoclusters on polydopamine-functionalized carbon nanotubes as an excellent catalyst for methanol oxidation reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
39527 45826 2015 6 PDF Available
Title
Ultradispersed platinum nanoclusters on polydopamine-functionalized carbon nanotubes as an excellent catalyst for methanol oxidation reaction
Abstract

•Pt nanoclusters were uniformly dispersed on polydopamine-functionalized CNTs.•The tiny size of Pt nanoclusters was characterized by TEM, XRD and XPS techniques.•The Pt/PDA-CNT electrocatalyst exhibits excellent performance towards MOR.

The poor electrocatalytic activity towards methanol oxidation reaction (MOR) and the extremely rare reserves of platinum are considered as two of the most severe obstacles which hinder the commercialization of direct methanol fuel cells. In this work, Pt nanoclusters (∼1.81 nm), which are much smaller than Pt nanoparticles (∼3 nm) in commercial Pt/C, have been uniformly dispersed on polydopamine-functionalized carbon nanotubes via a simple polyol method. These ultradispersed Pt nanoclusters feature large accessible active surface as well as high fraction of surface atoms with low coordination numbers, and therefore not only exhibit excellent mass activity and stability but also show improved specify activity and CO tolerance relative to Pt/C and Pt/CNT catalyst.

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Keywords
Platinum nanoclusters; Carbon nanotube; Polydopamine; Methanol oxidation reaction
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Ultradispersed platinum nanoclusters on polydopamine-functionalized carbon nanotubes as an excellent catalyst for methanol oxidation reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 490, 25 January 2015, Pages 65–70
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
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Any Questions? feel free to contact us