title: Resin-derived hierarchical porous carbon spheres with high catalytic performance in the oxidative dehydrogenation of ethylbenzene.
abstract: 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, N(2)  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.
authors.affiliation: State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, PR China.
authors.forename: Lifeng
authors.initials: L
authors.lastname: Wang
authors.forename: Juan J
authors.initials: JJ
authors.lastname: Delgado
authors.forename: Benjamin
authors.initials: B
authors.lastname: Frank
authors.forename: Zhe
authors.initials: Z
authors.lastname: Zhang
authors.forename: Zhichao
authors.initials: Z
authors.lastname: Shan
authors.forename: Dang Sheng
authors.initials: DS
authors.lastname: Su
authors.forename: Feng-Shou
authors.initials: FS
authors.lastname: Xiao
mesh_terms: D000837:Anion Exchange Resins / Q000737:chemistry*; D001555:Benzene Derivatives / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D006865:Hydrogenation; D010084:Oxidation-Reduction; D016062:Porosity; D013499:Surface Properties
chemical_list: D000837:Anion Exchange Resins; D001555:Benzene Derivatives; D002244:Carbon; C004912:ethylbenzene