Boron-triggering Mechanochemical Effect in Relation with Artificial Graphite and Carbon Nanotube

10.6180/jase.2003.6.3.07

Yuan-Haun Lee；Kaun-Chang Pan；Shen-Jiang Jeng；Shun-Tai Chang

Carbon Nanotube ； Fullerene ； Boron-triggering ； Mechanochemical Effect ； Scanning Electron Microscope ； Rietveld Method ； Raman Spectroscopy

淡江理工學刊

6卷3期（2003 / 09 / 01）

179 - 182

英文

An artificial graphite named as Dissolution Precipitation Graphite (DPG) was produced by a metallurgical manufacturing process, in which small amount of boron was added. DPG has a high degree of graphitization (90%) and a natural dispersion of carbon nanotube on the surface. This effect is ascribed to a peeling-off of graphene and is named as boron-triggering mechanochemical effect. After sieving and washing with HCl, the image of carbon nanotube can be observed by a scanning electron microscope. Crystal structures and the degrees of graphitization of the DPG samples were characterized by XRD and refined by the Rietveld method. Raman spectra of C-C bonding shown that the peaks of 1331 cm^(-1) and 1580 cm^(-1) of DPG are sharper and weaker than the original carbon material. Asp^2/Asp^3 ratio for the DPG-B2000 is the highest among the others.