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《Journal of Chemical Engineering of Chinese Universities》 2008-06
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Thermal Stability of Monolithic Honeycomb Ceramic La_(0.8)Sr_(0.2)MnO_3 Catalyst with Hexaaluminate Washcoat

GUAN Fang,LU Han-feng,HUANG Hai-feng,LIU Hua-yan,ZHANG Ze-kai,CHEN Yin-fei (College of Chemical Engineering and Materials Science,Zhejiang University of Technology,Hangzhou 310014,China)  
Sr0.3Ba0.5La0.2MnAl11O19 hexaaluminate and La0.8Sr0.2MnO3 perovskite were firstly prepared by co-precipitation,and then,by using the hexaaluminate as the washcoat,the honeycomb ceramic La0.8Sr0.2MnO3 catalyst was prepared.It was found that,after 30 min ultrasonic shock,the surface loading cast-off of the catalyst is only 0.3%(wt).XRD patterns show that both the Sr0.3Ba0.5La0.2MnAl11O19 hexaaluminate and La0.8Sr0.2MnO3 perovskite have perfect crystalline phase,and The SEM image shows that the La0.8Sr0.2MnO3 is well dispersed on the honeycomb ceramic support.The prepared catalyst has very good behavior for toluene catalytic combustion,and the toluene can be fully conversed at 280℃.Furthermore,the hexaaluminate washcoated honeycomb ceramic La0.8Sr0.2MnO3 catalysts exhibit higher thermal stability than that of the γ-Al2O3 washcoated honeycomb ceramic La0.8Sr0.2MnO3 catalysts.After calcinated at 850℃ for 3 h,the T95(temperature needed for 95% toluene conversion) of the hexaaluminate washcoated catalyst only increases 20℃,while the T95 of the γ-Al2O3 washcoated catalyst increases 80℃.
【Fund】: 浙江省科技厅重大专项资助(2007C13042)
【CateGory Index】: O643.36
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Chinese Journal Full-text Database 1 Hits
1 Sun Zhong1 Wu Tingting1 Pan Liequn1 Lu Hanfeng2 Huang Haifeng1 (1.College of Biology and Environment Engineering,Zhejiang University of Technology,Hangzhou 310014,China;2.College of Chemical Engineering & Materials,Zhejiang University of Technology,Hangzhou 310014,China);Performance of honeycomb ceramic La_(0.8)Sr_(0.2)MnO_3 catalyst for catalytic combustion of volatile organic compounds[J];Chinese Journal of Environmental Engineering;2010-08
Chinese Journal Full-text Database 3 Hits
1 HUANG Hai-feng~1,TANG Wei~1,CHEN Yin-fei~2,CHEN Bin-fen~11.College of Biological and Environmental Engineering of Zhejiang University of Technology, Hangzhou 310032,China;2.College of Chemical Engineering and Material Science of Zhejiang University of Technology,Hangzhou 310032,China;Preparation of Ultra-fine La_(1-x)Sr_xCoO_3 Perovskite Catalyst and the Study of Combustion in VOCs[J];Journal of Molecular Catalysis;2005-05
2 Xu Quanrui, Shen Meiqing~*, Wang Jun(Key Laboratory for Green Chemical Technology of State (Education) Ministry, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China);Pollution and Emission Control Technology of Cooking Fume[J];Journal of The Chinese Rare Earth Society;2003-S2
3 GUAN Fang,LU Han-feng,ZHANG yan,LIU Hua-yan,CHEN Yin-fei(State Key Laboratory Breeding Base of Green Chemistry-Synthese Technology,Zhejiang University of Technology,Hangzhou 310032,China);Catalytic combustion of volatile organic compounds on honeycomb ceramic La_(0.8)Sr_(0.2)MnO_3[J];Journal of Zhejiang University of Technology;2009-01
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