Journal article
A direct route toward assembly of nanoparticle-carbon nanotube composite materials
Langmuir, Vol.20(14), pp.6019-6025
07/06/2004
Handle:
https://hdl.handle.net/2376/117261
PMID: 16459625
Abstract
The preparation of nanocomposite materials from carbon nanotubes (CNTs) and metal or metal oxide nanoparticles has important implications to the development of advanced catalytic and sensory materials. This paper reports findings of an investigation of the preparation of nanoparticle-coated carbon nanotube composite materials. Our approach involves molecularly mediated assembly of monolayer-capped nanoparticles on multiwalled CNTs via a combination of hydrophobic and hydrogen-bonding interactions between the capping/mediating shell and the CNT surface. The advantage of this route is that it does not require tedious surface modification of CNTs. We have demonstrated its simplicity and effectiveness for assembling alkanethiolate-capped gold nanoparticles of 2-5 nm core sizes onto CNTs with controllable coverage and spatially isolated character. The loading and distribution of the nanoparticles on CNTs depend on the relative concentrations of gold nanoparticles, CNTs, and mediating or linking agents. The composite nanomaterials can be dispersed in organic solvent, and the capping/linking shells can be removed by thermal treatment to produce controllable nanocrystals on the CNT surfaces. The nanocomposite materials are characterized using transmission electron microscopy and Fourier transform infrared spectroscopy techniques. The results will be discussed in terms of developing advanced catalytic and sensory nanomaterials.
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Details
- Title
- A direct route toward assembly of nanoparticle-carbon nanotube composite materials
- Creators
- Li Han - Department of Chemistry, State University of New York at Binghamton, Binghamton, New York 13902, USAWendy WuF Louis KirkJin LuoMathew M MayeNancy N KariukiYuehe LinChongmin WangChuan-Jian Zhong
- Publication Details
- Langmuir, Vol.20(14), pp.6019-6025
- Academic Unit
- Mechanical and Materials Engineering, School of
- Publisher
- United States
- Identifiers
- 99900548026101842
- Language
- English
- Resource Type
- Journal article