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Direct oxidation of H2 to H2O2 over PdO/Al2O3 catalysts in aqueous acidic medium: Influence on H2O2 formation of Pd loading, calcination temperature and reduction of catalyst and presence of halide anions

Paper ID Volume ID Publish Year Pages File Format Full-Text
51763 46853 2008 5 PDF Available
Title
Direct oxidation of H2 to H2O2 over PdO/Al2O3 catalysts in aqueous acidic medium: Influence on H2O2 formation of Pd loading, calcination temperature and reduction of catalyst and presence of halide anions
Abstract

Effects of the Pd loading (0.2–10 wt%), calcination temperature (400–900 °C) and reduction of PdO/Al2O3 on its performance in the H2-to-H2O2 oxidation (with H2/O2 = 1:1) in an aqueous 0.1 M H3PO4 medium, in the absence and presence of different halide anions, under ambient conditions have been investigated. The effect of calcination temperature on the H2O2 formation varied depending upon the Pd loading. The influence of the different halide anions was found to depend strongly on the nature of halide anion (F−, Cl−, Br− or I−) and the oxidation state of Pd and its loading in the catalyst.

Keywords
Hydrogen peroxide; Oxidation of H2 to H2O2; PdO/Al2O3; Pd/Al2O3; Halide catalyst promoters
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Direct oxidation of H2 to H2O2 over PdO/Al2O3 catalysts in aqueous acidic medium: Influence on H2O2 formation of Pd loading, calcination temperature and reduction of catalyst and presence of halide anions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 14, 30 August 2008, Pages 2371–2375
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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