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Hydroxylation of benzene to phenol on Fe/TiO2 catalysts loaded with different types of second metal

Paper ID Volume ID Publish Year Pages File Format Full-Text
51970 46860 2008 5 PDF Available
Title
Hydroxylation of benzene to phenol on Fe/TiO2 catalysts loaded with different types of second metal
Abstract

This paper investigated the liquid phase hydroxylation of benzene to phenol with hydrogen peroxide over Fe/TiO2-based catalysts. Various types of second metal (i.e., Ni, Co, Pd and Pt) were loaded together with Fe on the TiO2 support and the catalytic performance of the obtained catalysts was compared. It was found that the presence of the second metal can improve the phenol production of the typical Fe/TiO2 catalyst. The yield of phenol follows the order: Pt > Pd >> Co ≈ Ni. Various techniques (NH3-TPD, XRD, BET surface area, SEM-EDX and XRF) were employed to characterize the Fe/TiO2, FePt/TiO2 and FePd/TiO2 catalysts. The acid property of the catalyst was found to be influenced by the addition of the second metal. Finally the effects of some operating variables (reaction time, H2O2/benzene ratio and amount of ascorbic acid) on the catalytic performance were investigated.

Keywords
Hydroxylation; Phenol production; Hydrogen peroxide; Metal oxide; TiO2
First Page Preview
Hydroxylation of benzene to phenol on Fe/TiO2 catalysts loaded with different types of second metal
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 9, 15 May 2008, Pages 1886–1890
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis