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Crystal structure, redox properties and catalytic performance of Ga-based mixed oxides for NO reduction by C3H6

Paper ID Volume ID Publish Year Pages File Format Full-Text
52382 46872 2008 6 PDF Available
Title
Crystal structure, redox properties and catalytic performance of Ga-based mixed oxides for NO reduction by C3H6
Abstract

A comparative study between LaGa1−xCuxO3 perovskites and ZnGa2O4 was conducted to clarify the correlation between crystal structure and redox properties as well as catalytic performance for the reduction of NO by C3H6. The oxidation ability of the prepared catalysts decreases following the order LaGa0.8Cu0.2O3 > LaGaO3 > ZnGa2O4. Perovskites, with the general composition of LaGa1−xCuxO3, were found to be suitable materials for NO reduction under scarce oxygen conditions, whereas excess oxygen (O2 > 1%) led to a significant decline in N2 yield. On the contrary, the presence of O2 is necessary for NO conversion to N2 over the ZnGa2O4 spinel, whose SCR activity was moderately enhanced at higher oxygen concentrations. The poor oxidation ability of ZnGa2O4 makes it as a promising candidate for lean NO reduction.

Keywords
NO reduction; Propene; Ga-based; Mixed oxides; Crystal structure; Redox properties
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Crystal structure, redox properties and catalytic performance of Ga-based mixed oxides for NO reduction by C3H6
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 1, January 2008, Pages 111–116
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
Full-text PDF Download
Online Support
Any Questions? feel free to contact us