| abstract |
A catalyst support comprises a monolithic non-oxide material having a surface area per unit volume of at least 105 M2/M3, and a pressure drop of at most 0.25 atm/mm. These structures are fabricated by capillary filling of packed beds of polystyrene or silica spheres with low-viscosity preceramic polymers. Subsequent curing, pyrolysis, and removal of the spheres yielded SiCN and SiC inverted beaded monoliths with a chemical composition and pore morphology that are stable in air at 800 °C. these structures can be used as catalyst support for high-temperature fuel reforming. |