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Direct synthesis, characterization and catalytic performance of Al–Fe-SBA-15 materials in selective catalytic reduction of NO with NH3

Paper ID Volume ID Publish Year Pages File Format Full-Text
49413 46741 2016 5 PDF Available
Title
Direct synthesis, characterization and catalytic performance of Al–Fe-SBA-15 materials in selective catalytic reduction of NO with NH3
Abstract

•Al–Fe-SBA-15 with varied Fe, Al loading was synthesized by microwave methods.•The introduction of Al can result in the generation of Brönsted acid sites.•The amount of Brönsted acid sites reached the maximum for Al(0.07)–Fe(0.03)-SBA-15.•Al–Fe-SBA-15 can be used effectively in NH3-SCR due to Brönsted acid sites.

A series of Al–Fe-SBA-15 catalysts were synthesized by microwave methods with various iron and aluminum contents. The samples were characterized by XRD, SEM, TEM, BET, NH3-TPD, FT-IR. Results indicated that all the samples that exhibited well-ordered hexagonal arrays of mesopores, disk-like and petal-like morphologies were observed for different catalysts. NH3-TPD indicated that the introduction of Al results in the generation of Brönsted acid originated from Al–OH. Brönsted acid played important roles in the selective catalytic reduction of NO by NH3, NOx conversion over Al–Fe-SBA-15 samples increased rapidly as temperature increased and achieved 95% at about 360 °C.

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Keywords
Al–Fe-SBA-15; Mesoporous; NH3-SCR; Brönsted acid
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Direct synthesis, characterization and catalytic performance of Al–Fe-SBA-15 materials in selective catalytic reduction of NO with NH3
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 73, 5 January 2016, Pages 118–122
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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