Peroviskite-type Lal-xSrxMnO3 (0≤x≤0.3) was prepared through the solgel process at low temperature (1100℃). The ethylene glycol and citric acid were used to make a sol-gel from an aqueous solution of lanthanum strontium and manganese nitrated. The particle-diameter distribution of powders is from 10 to 50urn, the mean particle size is about 35urn and the specific surface area is about 92.5 to 98.5m2g-1 .Peroviskite type La1-x.SrxMnO3 was synthesized at 1100℃, and the electronic conductivity of La1-xSrxMnO3 is 104-105S.m-1 from room temperature to 1000℃.
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