Ordered mesoporous materials which were first discovered in 1992 are promising catalysts and catalysts supports.^[1] They posess high surface areas (up to 1400m²g^-1) and precisely defined pore structure (diamater and 3D arrangement). Here we present how a new high surface area hexagonally ordered mesoporous silicon carbide (SiC) supports are prepared via nanocasting of the ordered mesoporous silica.^[2-4] Chemical vapor deposition from simple silanes,^[2,3] autogenic pressure reactions^[3] and polymer precursors infilitration^[4] were used to prepare SiC materials with highest surface areas reported untill now (up to 830 m²g^-1) and ordered mesopore structure. Moreover these materials are thermally stable up to 1300^oC and have high thermal conductivity. These properties of SiC supports makes them especially interesting in reactions where hot-spot formation is to be avoided and high temperature stability of support is required.^[5]

[1] Taguchi A., Schuth F., Microporous Mesoporous Mater. 2005, 77, 1

[2] Krawiec P., Weidenthaler C., Kaskel S. Chem. Mater. 2004, 16, 2869

[3] Krawiec P., Kaskel S., J. Solid State Chem. 2006, 179, 2281

[4] Krawiec P., Geiger D., Kaskel S. Chem.Commun. 2006, 23, 2469

[5] Ledoux M.J., Pham-Huu C. Cattech. 2001, 5, 226

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