High surface area carbon and process for its production

摘要

Activated carbon materials and methods of producing and using activated carbon materials are provided. In particular, biomass-derived activated carbon materials and processes of producing the activated carbon materials with prespecified surface areas and pore size distributions are provided. Activated carbon materials with preselected high specific surface areas, porosities, sub-nm (<1 nm) pore volumes, and supra-nm (1-5 nm) pore volumes may be achieved by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation process.

主权项

1. A process for making an activated carbon adsorbent having a predetermined pore size distribution and surface area, the process comprising contacting a char with KOH for one hour at an activation temperature ranging from 700° C. to 900° C. and a KOH:C ratio ranging from 3 to 4.5, wherein the activated carbon adsorbent has a total pore volume of at least 1.5 cc/g and a surface area of at least about 2700 m2/g.