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Microwave-assisted catalytic decomposition of N2O over hexaferrites

Paper ID Volume ID Publish Year Pages File Format Full-Text
51571 46847 2011 5 PDF Available
Title
Microwave-assisted catalytic decomposition of N2O over hexaferrites
Abstract

A series of Al substituted hexaferrites (Ba2Mg2Fe12 − xAlxO22, x = 0–6) were synthesized by sol–gel method and used as new catalysts for high concentration N2O decomposition. Substitution of Fe with Al increased the redox behavior and surface area and thus led to the enhancement of activity under conventional heating mode. On the other hand, the pure hexaferrite (x = 0) showed the highest activity for N2O decomposition under microwave discharge mode; the complete conversion of N2O was obtained at about 583 K. The presence of steam in the inlet gas further enhanced the activity, irrespective of the Al content in the materials.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Ba2Mg2Fe12O22 exhibited high activity for N2O decomposition under microwave irradiation mode. ► The presence of steam in the inlet gas had a positive effect on the activity. ► The introduction of Al can increase the catalytic activity of this material under conventional heating mode.

Keywords
N2O decomposition; Hexaferrites; Microwave discharge; Steam
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 16, Issue 1, 30 November 2011, Pages 103–107
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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