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

摘要： 以重油残渣为原料，采用微波等离子法制备了一种结构新颖的定向纳米碳薄膜材料。经场发射扫描电子显微镜、高分辨透射电子显微镜分析，结果表明：产物纯度较高，外观呈条状麦穗形，各条状物平行排列形成定向阵列，最大宽度约为65nm，长度可达900nm左右；麦穗的主干表层和穗片晶化程度较好，层与层之间清晰可见，中心部位为非晶态，可能是产物经历了由外向内的生长过程，重油残渣中的重金属Ni、Fe等对其生长起了一定的催化作用。

关键词:

重油残渣, 微波等离子体法, 定向纳米碳薄膜