关键词:

重油残渣, 微波等离子体法, 定向纳米碳薄膜

Abstract:

Oriented carbon films with novel structure were prepared by microwave plasma from heavy oil residue.The prepared films were characterized by field emission scanning electron microscopy, high resolution transmission electron microscopy, X-ray powder diffraction and Raman spectroscopy.The products were formed with high purity, and oriented as the shape of a strip-like wheat spike.The outer layers of the spike have a higher degree of crystallization, the maximum width and length are about 65 nm and 900 nm, respectively, while the central parts are amorphous.It was suggested that the products experienced a process from outer to inner growth.Some metals existed in the deoiled asphalt, such as Ni and Fe, may contribute as catalyst to the aligned carbon film growth.

Key words:

重油残渣, 微波等离子体法, 定向纳米碳薄膜