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Resin-Derived Hierarchical Porous Carbon Spheres with High Catalytic Performance in the Oxidative Dehydrogenation of Ethylbenzene

MPG-Autoren
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Delgado,  Juan Jose
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Departamento de Ciencia de los Materiales e Ingeniena Metalurgica y Quimica Inorganica, Facultad de Ciencieas, Universidad de Cadiz;

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Frank,  Benjamin
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Su,  Dang Sheng
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;
Shenyang National Laboratory for Materials Science Institute of Metal Research, Chinese Academy of Science;

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Zitation

Wang, L., Delgado, J. J., Frank, B., Zhang, Z., Shan, Z., Su, D. S., et al. (2012). Resin-Derived Hierarchical Porous Carbon Spheres with High Catalytic Performance in the Oxidative Dehydrogenation of Ethylbenzene. ChemSusChem: chemistry & sustainability, energy & materials, 5(4), 687-693. doi:10.1002/cssc.201100363.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0012-0BAA-4
Zusammenfassung
Pre-shaped hierarchical porous carbon (HPC) spheres have been synthesized through a facile anion exchanged route. An industrial polymeric anion-exchange resin with a hierarchical pore structure was used as the carbon precursor. Its high porosity was conserved using an aluminate/silicate precursor forming a hard support to prevent the structural collapse during the carbonization process. Physicochemical bulk and surface properties of the obtained HPC spheres were characterized by X-ray diffraction, scanning and transmission electron microscopy, N2 physisorption, and X-ray photoemission spectroscopy. Results obtained indicate that HPC keeps the abundant hierarchical porosity including meso- and macropores as well as the high surface area of the resin precursor. The as-synthesized HPC spheres were tested as a catalyst for oxidative dehydrogenation of ethylbenzene to styrene. The oxygen-rich catalyst surface formed under reaction conditions shows a high catalytic performance and stability, making HPC to a potential catalyst for this type of reaction.