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Effect of preparation methods and mirror plane cation on the catalytic property of AMnAl11O19−δ (A = K, Ca) catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51340 46839 2009 4 PDF Available
Title
Effect of preparation methods and mirror plane cation on the catalytic property of AMnAl11O19−δ (A = K, Ca) catalysts
Abstract

Manganese substituted hexaaluminates were prepared either by carbonate precipitation or sol–gel method and calcined at high temperature. The structure and property of these samples were characterized by XRD, BET, SEM and TG–DTA. The series of hexaaluminates exhibited significant catalytic activity at high temperature. Upon calcination at 1200 °C K2MnAl11O19−δ retained a specific surface area of 27.6 m2/g and showed an excellent activity for methane combustion, which temperatures at 10% and 90% conversion were 490 and 670 °C, respectively.

Keywords
Hexaaluminate; Catalytic combustion; Sol–gel method; Carbonate precipitation method
First Page Preview
Effect of preparation methods and mirror plane cation on the catalytic property of AMnAl11O19−δ (A = K, Ca) catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 10, Issue 8, 30 March 2009, Pages 1226–1229
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis