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Simultaneous catalytic removal of NOx and diesel soot particulates over La2 − xAxNi1 − yByO4 perovskite-type oxides

Paper ID Volume ID Publish Year Pages File Format Full-Text
50812 46815 2011 5 PDF Available
Title
Simultaneous catalytic removal of NOx and diesel soot particulates over La2 − xAxNi1 − yByO4 perovskite-type oxides
Abstract

A series of La2 − xAxBxNi1 − xO4 (A = Sr, Ba; B = Mn, Fe, x = 0, 0.2) complex oxides for simultaneous removal of nitrogen oxides and diesel soot were prepared by the citric acid complexation. The catalysts were characterized by XRD, XPS, H2-TPR, NO-TPD and catalytic activity measurements. According to these investigations, we found that the A2BO4-style catalyst containing Ni had excellent catalytic performance at low temperature. The oxygen had great influence on the target reaction. B-site would mainly influence the reaction temperature range; A-site would mainly control the selectivity of the reaction. The La1.8Sr0.2NiO4 catalyst showed the best activity, and the yield of N2 is up to 72% just at 300 °C.

Graphical AbstractPartial substitution of La by Sr on La2NiO4 has excellent performance in selective reductive reaction. The La1.8Sr0.2NiO4 has an obvious increase in PN2 from 45% to 71% just at 300 °C.Figure optionsDownload full-size imageDownload as PowerPoint slideResearch Highlights► A2BO4-type oxide containing Ni as catalyst. ► Catalysts for simultaneous removal of NOx and diesel soot particulates. ► They have low N2 conversion temperature and high N2 yield. ► A-site mainly influences the selection of the reaction. ► B-site mainly influences the reaction temperature range.

Keywords
Simultaneous removal; La2NiO4 oxides; Soot; NOx; Selective catalytic reduction
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Simultaneous catalytic removal of NOx and diesel soot particulates over La2 − xAxNi1 − yByO4 perovskite-type oxides
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 12, Issue 9, 30 April 2011, Pages 817–821
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