A simple method to decorate multi-walled carbon nanotubes (MWNTs) with metal/metal oxide nanoparticles using metal formate
as precursors has been successfully achieved. The obtained hybrid composites were characterized by scanning electron
spectroscopy, transmission electron spectroscopy and X-ray diffraction method. The well uniformed nanocrystals of size 15-25
nm on MWNTs were clearly resolved. The simple, rapid, solventless, economic, environmental friendly and can be applied to
decorate large quantity of MWNTs are advantages of this synthesis technique.