اثرات پارامترهای قوس-تخلیه بر روی مورفولوژی و هدایت الکتریکی مواد کربن سنتز شده

Carbon materials were synthesized by arc-discharge with various parameters of the discharge. The materials consist of soot globules of disordered carbon structure, also there are graphene fragments in the materials. Nevertheless electrical conductivity of the synthesized carbon materials basically is determined by affect of contact resistance appeared due to amorphous carbon which covers the graphene fragments. The electrical conductivity has values in the range from 2·10-3 to 5.3 S/m in depending of the synthesis conditions. For the synthesized material containing graphene planes with sizes bigger than the most of the soot globules the electrical conductivity is determined by content ratio of the graphene planes and the soot globules. This material has electrical conductivity of 33 S/m.