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Mn-substituted Ca–La–hexaaluminate nanoparticles for catalytic combustion of methane

Paper ID Volume ID Publish Year Pages File Format Full-Text
52824 46890 2007 4 PDF Available
Title
Mn-substituted Ca–La–hexaaluminate nanoparticles for catalytic combustion of methane
Abstract

Mn-substituted Ca–La–hexaaluminate rod-like nanoparticles (Ca1−xLaxMnAl11O19−α) with high surface area ranging from 47 to 80 m2/g for catalytic combustion of methane have been prepared using alumina sol as the (NH4)2CO3 coprecipitation precursor and a supercritical drying (SCD) method. Ca substitution gave rise to the maximum combustion activity (T10% = 459 °C) at x = 0 owing to the highest surface area. Meanwhile, Ca substitution affects the oxygen sorption property and the oxidation state of Mn ions in the hexaaluminate lattice. Ca0.6La0.4MnAl11O19−α catalyst with high catalytic activities was obtained owing to the excellent performance of activating oxygen.

Keywords
Ca–La–hexaaluminate; Catalytic combustion; Nanoparticle; Methane
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Mn-substituted Ca–La–hexaaluminate nanoparticles for catalytic combustion of methane
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 3, March 2007, Pages 237–240
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
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