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Since the discovery of many types of mesoporous silicas,such as SBA-15,KIT-6,FDU-12 and SBA-16,porous crystalline transition metal oxides,such as Cr_2O_3,Co_3O_4,In_2O_3,NiO,CeO_2,WO_3,Fe_2O_3 and MnO_2,have been synthesized using the mesoporous silicas as hard templates.Several synthetic methods have been developed.These new porous materials have high potential applications in catalysis, Li-ion rechargeable batteries and gas sensors.This article gives a brief review of the research of porous crystals of metal oxides in the last four years.
Since the discovery of many types of mesoporous silicas, such as SBA-15, KIT-6, FDU-12 and SBA-16, porous crystalline transition metal oxides such as Cr 2 O 3, Co 3 O 4, In 2 O 3, NiO, CeO 2, WO 3, Fe 2 O 3 and MnO_2, have been synthesized using the mesoporous silicas as hard templates. Synthesis of synthetic methods have been developed. These new porous materials have high potential applications in catalysis, Li-ion rechargeable batteries and gas sensors. This article gives a brief review of the research of porous crystals of metal oxides in the last four years.