Access to Ordered Porous Molybdenum Oxycarbide/Carbon Nanocomposites


  • This work was supported by the Deutsche Forschungsgemeinschaft (DFG) within the Collaborative Research Center (SFB) 840 (Project A7). T.L. acknowledges the international graduate school of the ENB “Structures, Reactivity and Properties of Metal Oxides” for a fellowship. Z.L. was supported by the U.S. Department of Homeland Security under Cooperative Agreement Number 2009-ST-108-LR0004. H.S. was supported through the National Science Foundation (NSF) grant DMR-1120296. The X-ray equipment was supported by Department of Energy grant DEFG-02-97ER62443. CHESS was supported by the NSF and NIH-NIGMS via DMR-0225180. We thank Prof. Sol Gruner (Department of Physics, Cornell University) for letting us acquire some of the SAXS patterns in his lab. Prof. Dr. Rüdiger Kniep is gratefully acknowledged for the support with elemental analysis. We also thank Prof. Dr. Axel H. E. Müller for ensuring easy access to its anionic polymerization reactors. Dr. Andrey Tarasov is acknowledged for thermogravimetric measurements. Klaus Friedel-Ortega, Dr. Annette Trunschke, and Prof. Dr. Robert Schlögl are acknowledged for fruitful discussions and support with heat treatment and TEM equipment.


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Hexagonally ordered mesoporous molybdenum oxycarbide/carbon (MoC/C) nanocomposites were directly accessed by heat treatment of mesostructured poly(butadiene-block-2-vinylpyridine) (PB-b-P2VP) and molybdophosphoric acid. PB-b-P2VP serves as structure-directing agent and as carbon source. The high specific surface area obtained for the nanocomposites renders the materials interesting for potential applications, such as in the catalytic decomposition of NH3.