Low temperature direct synthesis (LTDS) involves the preparation of a base solution of Sr2+, and the mixing of base solution with tetrabutyl titanate solution. LTDS is an advantageous method because it does not require the complex hydrothermal facilities and it can prevent the agglomeration in calcinations of other liquid methods. In our work, we adopted LTDS method to prepare the nano strontium titanate powders, and characterize them by XRD, FT-IR and TGA. The influences of preparation temperature and solvents on grain size and lattice parameters were investigated. The results show that preparation temperature can slightly change the lattice parameters of grain, while solvents also play important roles in the preparation.
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