Amorphous hollow carbon spheres synthesized using radio frequency plasma-enhanced chemical vapour deposition

作者:Yang G M; Xu Q; Tian H W; Wang X; Zheng W T*
来源:Journal of Physics D: Applied Physics , 2008, 41(19): 195504.
DOI:10.1088/0022-3727/41/19/195504

摘要

We report a method to synthesize amorphous hollow carbon spheres, with diameters ranging from 100 to 800 nm, which are dispersed among bent graphitized carbon nanotubes using radio frequency plasma-enhanced chemical vapour deposition in mixed CH(4)/H(2) gases. The products are characterized by techniques including scanning electron microscopy, energy-dispersive x-ray spectroscopy, Raman spectroscopy and transmission electron microscopy. It is found that MgO and Ni nanoparticles together with hydrogen play important roles in the formation of the spheres. A possible formation mechanism for the carbon composites has been proposed.