Hierarchical carbon nanofibers/graphene composite containing nanodiamonds for direct dehydrogenation of ethylbenzene
作者： Housseinou Ba , Lai Truong-Phuoc , Yuefeng Liu , Cuong Duong-Viet , Jean-Mario Nhut
DOI: 10.1016/J.CARBON.2015.10.044
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摘要: Abstract Hierarchical structure characterized by the decoration of few-layer graphene (FLG) surface with a dense network carbon nanofibers (CNF) was synthesized Chemical Vapor Deposition. This hierarchical composite further used as host matrix for dispersion nanodiamonds (ND) to produce metal-free catalyst direct dehydrogenation (DH) process ethylbenzene (EB) styrene. The as-synthesized three-dimension ND/CNF-FLG displays excellent activity and stability, especially under severe reaction conditions similar those in industrial process. Up 600 °C EB concentration 10 vol.%, significant high DH 56 . 9 mmol ST g ND − 1 h along 91.3% styrene selectivity. In addition, no deactivation is observed during more than 70 test. outstanding catalytic performance superior stability hybrid compared conventional carbon-based promoted iron catalysts, render it among most promising
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