Authors: Cailiu Yin Guofu Wen Qizhong Huang Xiufei Wang Liangming He Baorong Liu
Publish Date: 2010/11/09
Volume: 17, Issue: 5, Pages: 895-898
Abstract
Carbon spheres with size of 50–300 nm were synthesized via a solventthermal reaction with calcium carbide and chloroform as reactants in a sealed autoclave The morphologies and microstructures of carbon spheres before and after high temperature treatment HTT were characterized by Xray diffractometry XRD scanning electronic microscopy SEM energy diffraction spectroscopy EDS and transmission electron microscopy TEM The formation mechanism of carbon spheres was discussed The results indicate that the carbon spheres convert to hollow polyhedron through HTT Carbon spheres are composed of entangled and curve graphitic layers with short range order similar to cotton structure and carbon polyhedron with dimension of 50–250 nm and shell thickness of 15–30 nm The change of solid spheres to hollow polyhedron with branches gives a new evidence for formation mechanism of hollow carbon spheresFoundation item Project2006CB600901 supported by the National Basic Research Program of China Project0991015 supported by Guangxi Natural Science Foundation China Project200808MS083 supported by Guangxi Education Department Foundation China
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