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Highly dispersed Ag nanoparticles on modified carbon nanotubes for low-temperature CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
47012 46455 2011 5 PDF Available
Title
Highly dispersed Ag nanoparticles on modified carbon nanotubes for low-temperature CO oxidation
Abstract

This study used a simple and easy method to prepare a highly dispersed Ag nanoparticles (NPs) on modified carbon nanotubes (MCNTs). The Ag NPs were easily attached to the MCNT support by anchoring them to the functional groups. Oxygen functionalities on the HNO3-activated MCNT wall (FCNTs) provide nucleation centers for metal ions and can stabilize metal NPs on the support surface. This is an essential process for obtaining highly dispersed Ag NPs on FCNTs due to the presence of surface oxygen-containing functional groups. In addition, an Ag NP active site with a smaller particle size and higher dispersion rate exhibits higher activity for CO oxidation at low reaction temperatures. The catalytic results suggest that the Ag/FCNTs catalysts have a high potential for application in low-temperature CO oxidation.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideResearch highlights► A simple and easy method has been used to deposit highly dispersed Ag nanoparticles (NPs) on CNTs through functionalized of the carbon nanotubes (FCNTs). ► This is an important process for obtaining a highly dispersed Ag NPs on the FCNTs due to the presence of the surface oxygen-containing functional groups. ► The Ag NPs and their dispersion can enhance the efficiency of the CO oxidation reaction. ► These results imply that the Ag/FCNTs composites have a potential application in CO oxidation reaction at lower temperature.

Keywords
Modified carbon nanotubes (MCNTs); Functional groups; Ag nanoparticles; Low temperature CO oxidation
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Highly dispersed Ag nanoparticles on modified carbon nanotubes for low-temperature CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 103, Issues 1–2, 14 March 2011, Pages 221–225
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