尖晶石结构铁氧体的制备及其分解CO_2的研究

Study of the Preparation of Ferrite with Spinel Structure and Decomposition CO_2 to C

利用共沉淀法制备了具有尖晶石结构的MFe2 O4(M =Co ,Mn ,Ni等 ) ,用氢气还原为氧缺位的铁氧体MFe2 O4-δ,对其还原温度、热稳定性 ,化学稳定性和分解二氧化碳等性质进行了研究 .结果表明 ,该类化合物在高温时可转化为MO -FeO方铁矿结构 ,具有较高的分解CO2 活性 .

MFe 2O 4(M=Co,Mn,Ni)with spinel structure were prepared by using co-depositing method.Their properties of reduction temperature,thermo_stability,chem_stability and decomposition carbon dioxide et al have been studied.The results show that MFe 2O 4-δ can be decomposited to MO_FeO at high temperature,and have higher decomposition activity to carbon dioxide.