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Total oxidation of ethanol and propane over Mn-Cu mixed oxide catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
48865 46524 2006 8 PDF Available
Title
Total oxidation of ethanol and propane over Mn-Cu mixed oxide catalysts
Abstract

Mn-Cu mixed oxides were prepared by co-precipitation varying the aging time for 4, 18 and 24 h. The catalytic performance in propane and ethanol total oxidation on these samples was better than on Mn2O3 and CuO pure oxides. The increase of the aging time enhanced the activity and the selectivity to CO2. The nature and disposition of the phases forming the catalytic system as well as the effect of the precipitated aging time was determined by means of specific surface area measurements, X-ray diffractometry (XRD), infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), temperature programmed reduction (TPR) and temperature programmed desorption of oxygen (O2-TPD). The catalytic behaviour seems related to the existence of a Cu1.5Mn1.5O4 mixed phase and the easier reducibility of the catalysts.

Keywords
Manganese; Copper; Mixed oxide; Catalytic combustion; Propane; Ethanol
First Page Preview
Total oxidation of ethanol and propane over Mn-Cu mixed oxide catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 67, Issues 3–4, 5 October 2006, Pages 229–236
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis