Dispersion of gold nanoparticles into thiol-functionalized carbon nanotubes by γ-radiation

Gold nanoparticles are dispersed into thiol-functionalized multi-wall carbon nanotubes (MWCNTs). The thiol groups were utilized as linker to hold the gold nanoparticles without agglomeration. gamma-Radiation was used as source to reduce gold metal ions without having any additional reducing agents. Field emission transmission electron microscopy, UV-visible spectroscopy and X-ray diffraction analysis were used to confirm the existence of Au metallic particles in the MWCNT matrix. (c) 2007 Elsevier B.V. All rights reserved.