Solvothermal Synthesis and Characterization of Binary Rare Earth Sulfides AITranslate

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Chinese Library Classification Number:TQ133[化学工程—无机化工]

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The binary rare earth sulfides were synthesized by solvothermal method, with DDTC as sulfur source and rare earth nitrate as rare earth source, and ethanol as solvent. Their microstructures and mor- phologies were characterized by XRD, SEM and FTIR, and solvothemal synthesis conditions were optimized with Y2 S3 and Pr2 S3 as examples. The results indicate that the binary rare earth sulfides synthesized with solvothermal method have high crystallization degree. Both 8m2S3 and Yb2S3 are of high purity,but there are some sulfur impurities in Y2 S3 and Pr2S3. The binary rare earth sulfides with smaller particle size and lager specific surface area can be obtained by increasing reaction temperature and time.