Colloidal carbon submicro-spheres with (he diameter of l00-200nm can be formed by a glucose-thermal method at 180 deg C for 4 hours. Different electrolytes were tested to separate carbon spheres from the reacted system. The vacuum-sintering activity at 700 deg C,1500 deg C was explained by the intrinsic muti-functional groups surface of these carbon spheres. The measured BET value of carbon spheres before and after vacuum sintering was 26.6m~2/g. 444.3m~2/g and 65.8m~2/g. respectively.
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