期刊名称：Revista Internacional de Contaminación Ambiental
印刷版ISSN：0188-4999
出版年度：2014
卷号：30
期号：4
页码：417-427
语种：Spanish
出版社：Centro de Ciencias de la Atmósfera
摘要：A series of Bi2MoxW1-xO6 catalysts supported on Al2O3-SiO2, SiO2-TiO2 and activatedcarbon (C*) were synthesized. The aim was to compare the different supports and calcination temperature of catalysts, studying their efficiency and activation temperature in the CO oxidation reaction. The catalysts active phase, Bi2MoxW1-xO6, was made by means of chemical precipitation procedure starting from high purity (NH4)6Mo7O24•4H2O, (NH4)6W12O6•H2O, Bi(NO3)2•5H2O compounds, which afterwards, were supported on Al2O3-SiO2, SiO2-TiO2 and C* through impregnation. The catalysts characterization was carried out by means of X ray diffraction analysis (XRD), scanning electron microscopy (SEM) and surface area determination (BET method). Regarding the catalytic activity the Bi2MoxW1-xO6 /C* compound synthesized at 500 ºCwas the best catalyst being activated at 125 ºC reaching 90 % conversion. It is concluded that was observed an effect of calcination temperature and the support on the different values reached for the catalytic activity.
其他摘要：A series of Bi2MoxW1-xO6 catalysts supported on Al2O3-SiO2, SiO2-TiO2 and activatedcarbon (C*) were synthesized. The aim was to compare the different supports and calcination temperature of catalysts, studying their efficiency and activation temperature in the CO oxidation reaction. The catalysts active phase, Bi2MoxW1-xO6, was made by means of chemical precipitation procedure starting from high purity (NH4)6Mo7O24•4H2O, (NH4)6W12O6•H2O, Bi(NO3)2•5H2O compounds, which afterwards, were supported on Al2O3-SiO2, SiO2-TiO2 and C* through impregnation. The catalysts characterization was carried out by means of X ray diffraction analysis (XRD), scanning electron microscopy (SEM) and surface area determination (BET method). Regarding the catalytic activity the Bi2MoxW1-xO6 /C* compound synthesized at 500 ºCwas the best catalyst being activated at 125 ºC reaching 90 % conversion. It is concluded that was observed an effect of calcination temperature and the support on the different values reached for the catalytic activity.
关键词：catalytic activity; carbon monoxide oxidation; mixed oxides; supported catalyst;actividad catalítica;la oxidación de monóxido de carbono;óxidos mixtos;catalizador soportado
