Amphiphilic catalysts based on onion-like carbon over magnetic iron oxide for petrochemical industry use

Fuel, Available online 17 January 2012, In Press, Uncorrected Proof
Amphiphilic catalysts based on onion-like carbon over magnetic iron oxide for petrochemical industry use
Wladmir F. Souza^a,
Márcio C. Pereira^b,
Luiz C. A. Oliveira^c
luizoliveira@qui.ufmg.br
^a Petrobras-CENPES, Rio de Janeiro, RJ 21949-900, Brazil
^b Institute of Science and Technology, Federal University of Jequitinhonha and Mucuri Valleys, 39803-371 Teofilo Otoni, Brazil
^c Department of Chemistry, ICEx, Federal University of Minas Gerais, 31270-901 Belo Horizonte, Minas Gerais, Brazil
Abstract
Composites formed by carbon over magnetite were synthesized by impregnating iron oxide with glycerine. The formation of onion-like carbon was found, presenting concentric turbostratic shells with interplanar spacing of approximately 0.32 nm.
The composite presented spherical iron oxide particles with magnetic and amphiphilic properties.  This is interesting for use as a catalyst in the petrochemical industry. The magnetic composite presented a high catalytic activity for oxidation of quinoline in the aqueous and in the organic medium.
Full Text Source (Subscription or Fee): http://www.sciencedirect.com/science/article/pii/S0016236112000221