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The role of lanthanum oxide in the formation of NO2 over Pt–Pb/Al2O3–La2O3 catalysts under lean-burn conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
53051 46898 2006 4 PDF Available
Title
The role of lanthanum oxide in the formation of NO2 over Pt–Pb/Al2O3–La2O3 catalysts under lean-burn conditions
Abstract

NO-SCR over Pt/Al2O3, Pt–Pb/Al2O3 and Pt–Pb/Al2O3–lanthanum catalysts was studied. In the reduction of NO with C3H8 over undoped catalysts high selectivity to N2O was obtained (36–31% mol), meanwhile in lanthanum doped catalysts the formation of N2O is inhibited and high amounts of NO2 appears (37–44% mol). The role of lanthanum in the formation of NO2 seems to be related to organo-nitrogen compounds traps, which after decomposition forms N2.

Keywords
Platinum-lead bimetallic catalysts; Nitric oxide reduction with propane; XPS platinum–lead catalysts; Alumina–lanthanum supports
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The role of lanthanum oxide in the formation of NO2 over Pt–Pb/Al2O3–La2O3 catalysts under lean-burn conditions
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 4, April 2006, Pages 232–235
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
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