Plasma-chemically brominated single-walled carbon nanotubes as novel catalysts for oil hydrocarbons aerobic oxidation

Authors: Eldar Zeynalov, Joerg Friedrich, Asmus Meyer-Plath, Gundula Hidde, Lyatif Nuriyev, Aygun Aliyeva, Yutta Cherepnova

Abstract:
Brominated single-walled carbon nanotubes [(Br)_n-SWCNT) produced by the plasma-chemicaltechnique were involved in the liquid-phase process of hydrocarbons aerobic oxidation. The significant catalytic effect of the (Br)_n-SWCNT was revealed at first by the cumene initiated model oxidation and then in experiments on profound aerobic oxidation of petroleum naphthenic fraction derived from the commercial Azerbaijan (Baku) oils blend diesel cut. The ability of (Br)_n-SWCNT to accelerate the aerobic oxidation of the hydrocarbons was found out for the first time. Obviously this phenomenon originates from the peculiarities of electronic configuration of the (Br)_n-CNT patterns. The plausible mechanism of (Br)_n-SWCNT catalytic action is inclined to the formation of reactive oxygen species. The catalytic activity of (Br)_n-SWCNT markedly exceeds the activity of the industrial catalysts, manganese salt of indigenous petroleum acids, used for the liquid phase petroleum hydrocarbons oxidation process.

Keywords:
Brominated carbon nanotubes
Plasma-chemical technique
Model cumene oxidation
Oxidation rate
Oxidation catalysts
Oil hydrocarbons liquid-phase oxidation
Manganese naphthenate
Synthetic petroleum acids

Published in: Applied catalysis A: General  (Volume 454, Pages 1-172, 15 March 2013)

Publisher: Elsevier

ISSN Information: 0926-860X

Plasma-chemically brominated single-walled carbon nanotubes as novel catalysts for oil hydrocarbons aerobic oxidation

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