Mesoporous Silica-Lanthanum: Characterization and Catalytic Activity on NO Reduction

Authors

  • Lourdes Díaz-Jiménez Cinvestav-Saltillo

DOI:

https://doi.org/10.29356/jmcs.v51i3.1346

Keywords:

SCR-NO, Co catalyst, mesoporous materials

Abstract

Abstract. A series of ordered mesoporous silica-lanthanum materials was prepared. The influence of lanthanum into a silica matrix on the structural, textural and acidic properties is described. The mechanical and hydrothermal stability of mesoporous materials were evaluated. The catalytic activity of cobalt catalyst for selective reduction of nitrogen oxide -in the presence of propane- at temperatures between 350 and 550 °C, was tested. A selective reduction of NO by cobaltbased catalyst raised 18 %, at 450 °C.

 

Resumen. Se preparó una serie de materiales mesoporosos de sílicelantano. Se describe la influencia de la adición de lantano en las propiedades texturales, estructurales y ácidas. También se evaluó la estabilidad térmica e hidrotermal de los materiales. Se probó la actividad catalítica de cobalto, sobre uno de los materiales preparados, en la reducción selectiva de monóxido de nitrógeno con propano a temperaturas entre 350 y 550 °C. Se alcanzó una conversión de 18 % de NO a 450 ºC con el catalizador probado.

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Published

2020-07-31

Issue

Vol. 51 No. 3 (2007): Regular Issue

Section

Regular Articles

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