METHOD OF PREPARING CARBON MATERIAL Russian patent published in 1997 - IPC

FIELD: composite materials based on diamonds. SUBSTANCE: carbon material is prepared by premolding half-finished product having porosity of 50-80 % by volume made of diamond powder with particle size of not greater than 10 nm and subsequently heat treating it in hydrocarbons at temperature higher than decomposition temperature thereof to increase the weight of half-finished product by not more than 50 wt %. Half-finished product made of powder is molded by pressing, slurry casting or applying onto heat resistant slurry substrate at diamond concentration of 3-40 wt %. The claimed method makes it possible to obtain carbon material having high adsorption activity higher (by 2-10 times higher than that of the prior art) of double electric layer in electrolyte solution. EFFECT: more efficient preparation method. 2 cl