Estudio del encapsulamiento de metales en zeolita ZSM–5
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Ciencia de Materiales Avanzados Resumen: La preparación y encapsulamiento de metales ha sido de gran interés en el desarrollo de materiales a escala nano por sus aplicaciones como sensores químicos, catalizadores, entre otros. Los catalizadores zeolíticos ZSM–5 se hicieron en cuatro etapas, i) la preparación de la zeolita ZSM–5 a escala manométrica, ii) síntesis de la sílice MCM–41, iii) compatibilización para la formación del hibrido MCM–41/ZSM–5 por interacciones electrostáticas y iv) encapsulamiento de metales. El material hibrido MCM-41/ZSM-5 presento un área superficial de 410 m2/g, con distribución de poros bimodal. Además, al material hibrido se le realizo el encapsulamiento de los metales de oro, cobre y plata al 1%p/p por el método de impregnación húmeda. Después de la impregnación de metales, el material que presento mejores propiedades para servir como posible catalizador es el material impregnado con cobre al 1%p/p, debido a las propiedades de textura
Abstract: The preparation and encapsulation of metals had been of great interest in the performance of materials to nanoscale by their applications like chemical sensors, catalysts, and others. The zeolitic catalysts ZSM–5 was done in four steps, i) the preparation of zeolite ZSM–5 to nanometric scale, ii) synthesis of MCM–41, iii) compatibility of MCM–41/ZSM–5 by electrostatic interactions, and iv) encapsulation of metals. The hybrid materials MCM-41/ZSM-5, has a surface area of 410m2/g, with pore size diameter bimodal. Further, the hybrid material was performed encapsulation of metals gold, copper and silver 1%w/w by wet impregnation method. After the impregnation of metals, the material showed better properties to serve as possible catalyst is that impregnated with cupper 1 %w/w, due to the texture properties
Abstract: The preparation and encapsulation of metals had been of great interest in the performance of materials to nanoscale by their applications like chemical sensors, catalysts, and others. The zeolitic catalysts ZSM–5 was done in four steps, i) the preparation of zeolite ZSM–5 to nanometric scale, ii) synthesis of MCM–41, iii) compatibility of MCM–41/ZSM–5 by electrostatic interactions, and iv) encapsulation of metals. The hybrid materials MCM-41/ZSM-5, has a surface area of 410m2/g, with pore size diameter bimodal. Further, the hybrid material was performed encapsulation of metals gold, copper and silver 1%w/w by wet impregnation method. After the impregnation of metals, the material showed better properties to serve as possible catalyst is that impregnated with cupper 1 %w/w, due to the texture properties