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Nanocrystalline la1 – xK x FeO3 (x = 0 – 0.4) oxides for catalytic removal of soot from practical diesel exhaust emission / Xiaoxiao Meng in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11037-11042 Titre : Nanocrystalline la1 – xK x FeO3 (x = 0 – 0.4) oxides for catalytic removal of soot from practical diesel exhaust emission Type de document : texte imprimé Auteurs : Xiaoxiao Meng, Auteur ; Fenglin He, Auteur ; Xiangqian Shen, Auteur Année de publication : 2011 Article en page(s) : pp. 11037-11042 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Nanocrystalline Résumé : The nanocrystalline, porous, perovskite La1–xK x FeO3 (x = 0–0.4) powders and La0.8K0.2FeO3-coated honeycomb ceramic device were prepared by the citrate-gel process and the citrate-gel assisted dip-coating method at a low calcination temperature of 600̊C for 6 h, respectively. All the perovskite powders can effectively catalyze the soot combustion and among them the La0.8K0.2FeO3 catalyst exhibits the highest catalytic activity for the soot combustion, with a lowest T50 (350 °C) owing to a high specific surface area and large pore sizes. This optimized La0.8K0.2FeO3 catalyst is proved by the bench test for the practical exhaust gas emission and the La0.8K0.2FeO3-coated honeycomb ceramic device has a effective capture of particulate matter from the exhaust emission at a low temperature and starts to efficiently catalyze oxidization reactions of the particulate matter at the temperature around 245 °C (T 20), leads the smoke opacity near zero at the operational temperature of 400 °C. DEWEY : 660 ISSN : 0888-5885 En ligne : http://journals1.scholarsportal.info/details.xqy?uri=/08885885/v50i0019/11037_nl [...] [article] Nanocrystalline la1 – xK x FeO3 (x = 0 – 0.4) oxides for catalytic removal of soot from practical diesel exhaust emission [texte imprimé] / Xiaoxiao Meng, Auteur ; Fenglin He, Auteur ; Xiangqian Shen, Auteur . - 2011 . - pp. 11037-11042. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11037-11042 Mots-clés : Nanocrystalline Résumé : The nanocrystalline, porous, perovskite La1–xK x FeO3 (x = 0–0.4) powders and La0.8K0.2FeO3-coated honeycomb ceramic device were prepared by the citrate-gel process and the citrate-gel assisted dip-coating method at a low calcination temperature of 600̊C for 6 h, respectively. All the perovskite powders can effectively catalyze the soot combustion and among them the La0.8K0.2FeO3 catalyst exhibits the highest catalytic activity for the soot combustion, with a lowest T50 (350 °C) owing to a high specific surface area and large pore sizes. This optimized La0.8K0.2FeO3 catalyst is proved by the bench test for the practical exhaust gas emission and the La0.8K0.2FeO3-coated honeycomb ceramic device has a effective capture of particulate matter from the exhaust emission at a low temperature and starts to efficiently catalyze oxidization reactions of the particulate matter at the temperature around 245 °C (T 20), leads the smoke opacity near zero at the operational temperature of 400 °C. DEWEY : 660 ISSN : 0888-5885 En ligne : http://journals1.scholarsportal.info/details.xqy?uri=/08885885/v50i0019/11037_nl [...]