Abstract: La-Cr perovkites supported on mesoporous material were synthesized by hydrothermal method using the hexadexyl trimethyl ammonium bromide template. The resultant was calcined at different temperatures. Samples was characterized by X – ray diffraction, SEM, TEM and TGA techniques. The results showed that both the perovkite  and mesoporous material matrix were formed at a temperature in the range of 500 - 550^oC. At a lower temperature (< 500^oC), perovskite could not be clearly formed whereas a slightly higher calcination temperature (600^oC) may lead to the formation of  a mixture of nanoxides.

Tải file Ảnh hưởng của nhiệt độ nung tới cấu trúc vật liệu perovskit chứa crom mang trên oxit mao quản trung bình tại đây