20100033902 | COMPOSITE CONTAINING CARBONIZED BIOPOLYMERS AND CARBON NANOTUBES AND METHOD OF MAKING THE COMPOSITE - A composite suitable as a charge-storing material for electrochemical capacitors contains carbon nanotubes and a carbonaceous materiel. The carbonaceous material is the carbonization residue of a biopolymer or seaweed rich in heteroatoms. Wherein the carbonization residue of the biopolymer or seaweed is electrically conductive and has a heteroatom content as detected by XPS of at least 6%. | 02-11-2010 |