Attachment of Metal Oxide Nanoparticles on Carbon Nanotubes with Different Oxidation Levels

Abstract:

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An efficient surface modification technique for fabricating tin dioxide/carbon composite nanotubes has been developed. This technique combines with implantation of acidic groups, interaction between surface oxides and metal ions or hydration molecules, and thermal. To functionalize multi-layered carbon nanotubes (CNTs), gaseous oxidation at 300°C was used to build functional oxygen groups including carboxyl, carbonyl and hydroxyl group, on ends or sidewalls of CNTs. X-ray photoelectron spectroscopy clearly indicated that the atomic ratio of attached tin-oxide on the oxidized CNTs gradually increases with the oxidation level, i.e., surface O/C atomic ratio. This evidence reflected that the surface oxides act as an adsorption center that strongly interacts with metal ions or hydration molecules in aqueous phase.

Info:

Periodical:

Advanced Materials Research (Volumes 55-57)

Main Theme:

Edited by:

Tawee Tunkasiri

Pages:

545-548

DOI:

10.4028/www.scientific.net/AMR.55-57.545

Citation:

C. T. Hsieh and J.Y. Lin, "Attachment of Metal Oxide Nanoparticles on Carbon Nanotubes with Different Oxidation Levels", Advanced Materials Research, Vols. 55-57, pp. 545-548, 2008

Online since:

August 2008

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Price:

$35.00

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