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Selective and Stable Ethylbenzene Dehydrogenation to Styrene over Nanodiamonds under Oxygen‐lean Conditions
Author(s) -
Diao Jiangyong,
Feng Zhenbao,
Huang Rui,
Liu Hongyang,
Hamid Sharifah Bee Abd,
Su Dang Sheng
Publication year - 2016
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201501516
Subject(s) - dehydrogenation , ethylbenzene , styrene , nanodiamond , catalysis , selectivity , chemistry , materials science , photochemistry , chemical engineering , organic chemistry , copolymer , polymer , diamond , engineering
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.