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Covalent Coupling of Gold Nanoparticles to Multiwalled Carbon Nanotubes for Electronic Device Applications

Published online by Cambridge University Press:  21 March 2011

Xicheng Ma ,
Ning Lun ,
Xia Li  and
Shulin Wen
Xicheng Ma
Affiliation:
School of Chemistry and Chemical Engineering Shandong University, Jinan 250061, PR China
Ning Lun
Affiliation:
School of Material Science and Engineering, Characterization and Analysis Center for Materials
Xia Li
Affiliation:
School of Material Science and Engineering, Characterization and Analysis Center for Materials
Shulin Wen
Affiliation:
School of Material Science and Engineering, Characterization and Analysis Center for Materials
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Abstract

Creating hybrid nanostructures of disparate nanoscale blocks is of interest of exploring new types of electronic devices and networks. Here, we demonstrate the novel coupling of gold nanoparticles of 3-4 nm diameters to sidewall of multiwalled carbon nanotubes (MWNTs) using the electroless plating technique. MWNTs were initially chemically modified with an H2SO4-HNO3 acid treatment, and subsequently activated with Pd-Sn catalytic nuclei via a one-step activation approach. When the activated MWNTs were immersed in a gold-containing electroless plating bath, gold deposition occurred at the catalytic sites. The deposited gold clusters then catalyze further gold deposition on the tube surface (autocatalytic process). Novel hybrid nanostructures with gold nanoparticles homogeneously distributed on MWNTs resulted. High-resolution transmission electron microscopy (HRTEM) and energy dispersive X-ray spectroscopy (EDS) were used to characterize the conjugation process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 818: Symposium M – Nanoparticles and Nanowire Building Blocks-Synthesis, Processing, Characterization and Theory , 2004 , M5.9.1
Copyright
Copyright © Materials Research Society 2004

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