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Platinum nanoparticle-decorated TiO2 nanotube arrays as new highly active and non-poisoning catalyst for photo-electrochemical oxidation of galactose

Paper ID Volume ID Publish Year Pages File Format Full-Text
40952 45872 2012 8 PDF Available
Title
Platinum nanoparticle-decorated TiO2 nanotube arrays as new highly active and non-poisoning catalyst for photo-electrochemical oxidation of galactose
Abstract

Platinum nanoparticles were doped on the TiO2 nanotube using a microemulsion method. The TiO2 nanotube arrays were successfully fabricated by the anodizing of titanium sheets. The morphology and surface analysis of the Pt-TiO2 nanotubes were investigated using SEM, EDX and XRD respectively. The electro-oxidation of galactose on this catalyst in alkaline medium was studied using cyclic voltammetry and chronoamperometry methods. The results showed that the oxidation peak currents on the Pt-TiO2 nanotubes for galactose oxidation are larger than those on a smooth platinum electrode and confirmed the better electro-catalytic activity and stability of these new catalysts. The photo-catalytic properties of the TiO2 make the Pt-TiO2 nanotubes electrode reusable after a short UV treatment, and the electro-oxidation current density of the Pt-TiO2 nanotubes after UV-cleaning can be re-established.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (108 K)Download as PowerPoint slideHighlights► Anti-poisoning ability of TiO2 makes Pt-TiO2 re-usable after a short UV treatment. ► Pt-TiO2 showed a remarkably enhanced performance for galactose oxidation under UV. ► For galactose oxidation, Pt-TiO2 has high current density and good stability.

Keywords
TiO2 nanotubes; Platinum nanoparticle; Photo-catalytic; UV-cleaning; Galactose; Microemulsion
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Platinum nanoparticle-decorated TiO2 nanotube arrays as new highly active and non-poisoning catalyst for photo-electrochemical oxidation of galactose
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volumes 427–428, 15 June 2012, Pages 35–42
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