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Heterogeneous hydroxylation catalyzed by multi-walled carbon nanotubes at low temperature

Paper ID Volume ID Publish Year Pages File Format Full-Text
44197 46007 2006 6 PDF Available
Title
Heterogeneous hydroxylation catalyzed by multi-walled carbon nanotubes at low temperature
Abstract

In this paper, multi-walled carbon nanotubes (MWCNTs) were directly used as catalysts for the hydroxylation of aromatic hydrocarbons at low temperature (50–70 °C). Without the assistance of any solvent or additive, high selectivity was still obtained. The catalysts were characterized by X-ray powder diffraction, infrared spectra, Raman spectra, and transmission electronic microscopy. These results prove that MWCNT was a highly-active, highly-selective, and well-reproductive heterogeneous catalyst. The curved sp2-hybridized carbon surfaces of MWCNT played an important role in these selective catalytic reactions. The reactions were proposed to occur via an oxene attacking process. The active oxygen species were generated through the interaction between the hydrogen peroxide and the MWCNTs and subsequently consumed by the aromatic hydrocarbons. This process was repeated in the catalytic reactions.

Keywords
Carbon nanotube; Heterogeneous catalysis; Hydroxylation; Aromatic hydrocarbon
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Heterogeneous hydroxylation catalyzed by multi-walled carbon nanotubes at low temperature
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 299, 17 January 2006, Pages 212–217
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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