| abstract |
A porous carbon characterized by a volume pore size distribution with two peaks, the first of the peaks being between 0.5 nm and 1.0 nm and the second of the peaks being between 1.0 nm and 5.0 nm Is porous carbon. The porous carbon has a volume specific capacity of at least 40 F / cm 3 in an organic electrolyte, an average pore diameter between about 2 nm and about 30 nm, a surface area of at least 900 m 2 / g, and / or at least 0.4 g. It may have a density of / cm 3 . Methods for making such carbon include: a) curing a mixture comprising a carbohydrate, a dehydrating component, and a non-metallic cation pore former; and b) about 100 m 2 / g of the cured carbon. Carbonizing under conditions effective to provide a porous carbon having a surface area of between 3000 m 2 / g. The dehydrating component and the non-metallic cation component may comprise two components of one compound. |