溶融硫黄を用いるPbTiS<sub>3</sub>の合成

Abstract

Lead titanium sulfide, PbTiS3, was synthesized at relatively low temperatures of 300 ~ 450 °C by the reaction of PbS (or Pb) and TiS2 in a large excess amount of sulfur melt in sealed ampoules for several days. The addition of 10 mole % PbCl2 was found to effect significantly the yield of PbTiS3. This effect was smaller when 10 mole % PbI2 was added. The accompanying impurities were PbS, TiS3, TiS2, TiO2, PbCl2 after the excess sulfur was removed by filtration in a molten state. The amounts of such impurities were greatly decreased by the combination of the addition of PbCl2 and the lowering of the initial PbS amount, and PbTiS3 was synthesized in nearly pure form.