HIGH SURFACE AREA CARBON SUBSTRATES FOR ENVIRONMENTAL APPLICATIONS

摘要

A family of high surface area carbon honeycomb substrates has been developed for a variety of environmental applications. This technology is based on synthetic carbon precursors combined with a ceramic backbone to produce strong, abrasion resistant and durable carbon structures. These structures do not contain any binders and as a result are highly durable to solvent attack and are also highly electrically conductive. These structures contain from 5-95% carbon, which can then be activated to obtain surface areas in excess of 1000 m~2/g. In addition, catalyst precursors can be added to the carbon precursors to achieve catalyst dispersed in-situ within the carbon structure. These substrates are ideal candidates for industrial air pollution control, water purification, catalyst support, capacitive deionization and other applications. The materials and processing for these high surface area carbon substrates will be discussed. In addition, two applications will be discussed in more detail- their use as catalyst supports and in capacitive deionization of water.