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Direct decomposition of NO into N2 and O2 on BaMnO3-based perovskite oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
48600 46514 2007 8 PDF Available
Title
Direct decomposition of NO into N2 and O2 on BaMnO3-based perovskite oxides
Abstract

Effects of dopant in BaMnO3 perovskite oxide on the NO direct decomposition activity were investigated. NO direct decomposition activity was greatly elevated by doping La and Mg for Ba and Mn site in BaMnO3, respectively. The highest N2 yield was achieved on Ba0.8La0.2Mn0.8Mg0.2O3. The NO decomposition rate increased with increasing NO partial pressure with PNO1.19. Coexistence of oxygen lowered the N2 yield with PO2−0.18PO2−0.18; however, N2 yield of 40% was sustained even under coexisting of 5% O2 at 1123 K. Adsorption state of oxygen was also studied with temperature programmed desorption (TPD) method and the desorption temperature of oxygen was lowered by doping Mg for Mn site in BaMnO3.

Keywords
NO decomposition; Perovskite oxide; BaMnO3; Dopant effects
First Page Preview
Direct decomposition of NO into N2 and O2 on BaMnO3-based perovskite oxides
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 74, Issues 3–4, 31 July 2007, Pages 299–306
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis