| 摘要 |
Enhanced methods for preparing activated carbons have been discovered. In order to form an activated carbon, a carbon precursor material is coated wi th a phosphorus based chemical solution and physically activated. An activat ed carbon may also be formed by coating a green carbon precursor with a chem ical solution that chemically reacts with carbon, carbonizing the resulting material, and physically activating the material during at least a portion o f the carbonizing step. An activated carbon may also be formed by milling a carbon material to a predetermined particle size, then activating the milled particles. In another enhancement, an activated carbon is formed by coating a carbon or carbon precursor with nanoparticles, carbonizing if the carbon is a carbon precursor, then catalytically activating in air and an inert gas , and physically activating in steam or carbon dioxide. An activated carbon may also be formed by physically activating a previously chemically activate d carbon. |
