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          Institute: Fritz-Haber-Institut     Collection: Inorganic Chemistry     Display Documents

ID: 278014.1, Fritz-Haber-Institut / Inorganic Chemistry
A Novel Catalyst for Synthesis of Styrene: Carbon Nanofibers Immobilized on Activated Carbon
Authors:Delgado, Juan José; Chen, Xiaowei; Su, Dang Sheng; Abd Hamid, Sharifah Bee; Schlögl, Robert
Research Context:Carbon in catalysis
Date of Publication (YYYY-MM-DD):2007
Title of Journal:Journal of Nanoscience and Nanotechnology
Journal Abbrev.:J. Nanosci. Nanotechnol.
Issue / Number:10
Start Page:3495
End Page:3501
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:Carbon NanoFibers (CNFs) with hierarchically structure have been immobilized onto Activated Carbon (AC) by impregnation with an aqueous solution of Fe(CH3COO)2, reduction and subsequent chemical vapor decomposition of ethylene. The morphology of the CNFs can be modulated by adjusting the pH of the Fe(CH3COO)2 solution used for impregnating the AC. A stable yield of 35% in the oxidative dehydrogenation of ethylbenzene to styrene was obtained at a temperature of 673K, around 200K lower than the current industrial process. The immobilized CNFs on AC catalysts combine the catalytic properties of the carbon nanofibers and the suprastructure of the AC host. The final material is an easy to handle active catalyst, with an open structure of immobilized CNFs avoiding the pressure drop problem, which is typically observed for fine powder forms of CNFs. The immobilized CNFs on AC are attractive for gas-phase fixed-bed industrial applications.
Free Keywords:Carbon Nanofibers; Oxidative Dehydrogenation; Ethylbenzene; Styrene;immobilized nanocarbon; Activated Carbon
External Publication Status:published
Document Type:Article
Communicated by:Robert Schlögl
Affiliations:Fritz-Haber-Institut/Inorganic Chemistry/Microstructure
Fritz-Haber-Institut/Inorganic Chemistry/Inorganic Chemistry
External Affiliations:Combinatorial Technology and Catalysis Research Center, Universiti Malaya, 50603 Kuala Lumpur, Malaysia
Identifiers:URL:http://dx.doi.org/10.1166/jnn.2007.845 [only subscribers]
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