title: Selective and Stable Ethylbenzene Dehydrogenation to Styrene over Nanodiamonds under Oxygen-lean Conditions.
abstract: For the first time, significant improvement of the catalytic performance of nanodiamonds was achieved for the dehydrogenation of ethylbenzene to styrene under oxygen-lean conditions. We demonstrated that the combination of direct dehydrogenation and oxidative dehydrogenation indeed occurred on the nanodiamond surface throughout the reaction system. It was found that the active sp(2)-sp(3) hybridized nanostructure was well maintained after the long-term test and the active ketonic carbonyl groups could be generated in situ. A high reactivity with 40% ethylbenzene conversion and 92% styrene selectivity was obtained over the nanodiamond catalyst under oxygen-lean conditions even after a 240 h test, demonstrating the potential of this procedure for application as a promising industrial process for the ethylbenzene dehydrogenation to styrene without steam protection.
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Jiangyong
authors.initials: J
authors.lastname: Diao
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Zhenbao
authors.initials: Z
authors.lastname: Feng
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Huang
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China. liuhy@imr.ac.cn.
authors.forename: Hongyang
authors.initials: H
authors.lastname: Liu
authors.affiliation: Nanotechnology & Catalysis Research Centre, NANOCAT, University of Malaya, IPS Building, 50603, Kuala Lumpur, Malaysia.
authors.forename: Sharifah Bee Abd
authors.identifier: http://orcid.org/0000-0002-5104-3938
authors.initials: SB
authors.lastname: Hamid
authors.affiliation: Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China. dssu@imr.ac.cn.
authors.forename: Dang Sheng
authors.initials: DS
authors.lastname: Su
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D006865:Hydrogenation; D013058:Mass Spectrometry; D046529:Microscopy, Electron, Transmission; D058612:Nanodiamonds; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D020058:Styrene / Q000737:chemistry*; D013818:Thermogravimetry
chemical_list: D001555:Benzene Derivatives; D058612:Nanodiamonds; D020058:Styrene; C004912:ethylbenzene; D010100:Oxygen
keywords: catalysis; ethylbenzene; heterogeneous catalysis; nanoparticles; oxidative dehydrogenation