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Improvement in the catalytic performance of In-mordenite through preferential growth on metallic monoliths

Paper ID Volume ID Publish Year Pages File Format Full-Text
44312 46014 2006 11 PDF Available
Title
Improvement in the catalytic performance of In-mordenite through preferential growth on metallic monoliths
Abstract

This work explored different ways of obtaining metallic monoliths coated with mordenite by hydrothermal synthesis. The results demonstrate that while direct synthesis favored the growth of ZSM5 instead of mordenite, the mordenite structure could only be obtained after seeding the support with crystals. Secondary synthesis showed great flexibility and possibilities of achieving different coating properties. Seed size and concentration, agitation and number of synthesis runs could be manipulated in order to change the microstructural characteristics. In most cases, the mordenite coatings were dense, thin films with high intergrowth. Additionally, the orientation of the zeolite crystals was so privileged that the channels in the b direction were perpendicular to the support whereas the channels in the c direction were parallel to it. This preferential orientation could be the main reason for the improved NOx SCR activity of the In-mordenite monoliths if compared to the powder catalysts.

Keywords
Mordenite; Hydrothermal synthesis; Metallic monolith; SCR of NOx with CH4
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Improvement in the catalytic performance of In-mordenite through preferential growth on metallic monoliths
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 308, 10 July 2006, Pages 161–171
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
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