Composite nanostructure of vertically aligned carbon nanotube array and planar graphite layer obtained by the injection CVD method

Abstract

The carbon nanostructure composed of an array of vertically aligned carbon nanotubes (CNTs) and a planar graphite layer (PGL) located at the top of the array has been obtained by the injection chemical vapor deposition method, realized using high temperature catalytic pyrolysis of xylene-ferrocene mixture. The carbon nature of the planar layer was identified using Auger electron spectroscopy. Scanning electron microscopy analysis enabled to ascertain peculiarities of CNT-PGL nanostructure morphology, in particular, the internal layer-built structure of PGL and its links with the underlying CNT array. The mechanism of CNT-PGL nanostructure formation was considered.