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



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ID: 430066.0, Fritz-Haber-Institut / Inorganic Chemistry
The structure and mechanistic impact of carbon deposits in dehydrogenation reactions
Authors:McGregor, James; Zeitler, J. Axel; Parrott, Edward P. J.; Gladden, Lynn F.; Tessonnier, Jean-Philippe; Hansen, Thomas W.; Su, Dang Sheng; Schlögl, Robert
Language:English
Research Context:Carbon
Name of Conference/Meeting:EuropaCat IX
Place of Conference/Meeting:Salamanca [Spain]
(Start) Date of Conference/Meeting
 (YYYY-MM-DD):
2009-08-30
End Date of Conference/Meeting 
 (YYYY-MM-DD):
2009-09-04
 Invitation status:contributed
Audience:Experts Only
Abstract / Description:The catalytic dehydrogenation (DH) and oxidative dehydrogenation (ODH) of light alkanes is widely studied as a route to the formation of alkenes and di-alkenes, important precursor molecules for synthetic rubbers, plastics and a variety of other products [1-4]. Recent studies have focused on the non-oxidative DH of butane over alumina-supported vanadia catalysts [5-7]. In the present work, we provide a detailed understanding of both the role and structure of coke deposited on VOx/Al2O3 during reaction. A range of characterisation techniques have been employed including the first application of terahertz time domain spectroscopy (THz-TDS) to the study of coke. Complementary THz-TDS characterisation of carbonaceous materials including carbon nanofibres (CNFs) has also been conducted.
Free Keywords:Carbon, ODH, VOx/Al2O3, Catalyst
Document Type:Talk at Event
Communicated by:Robert Schlögl
Affiliations:Fritz-Haber-Institut/Inorganic Chemistry/Micro- and Nanostructure / Carbon
Fritz-Haber-Institut/Inorganic Chemistry/Inorganic Chemistry
External Affiliations:1Univeristy of Cambridge, Department of Chemical Engineering, Cambridge CB2 3RA (UK)
Univeristy of Cambridge, Cavendish Laboratory, Cambridge CB3 0HE (UK)
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