Synthesis of Sc sulfides by CS2 sulfurization

Takumi Kaneko, Yuta Yashima, Eltefat Ahmadi, Shungo Natsui, Ryosuke O. Suzuki

Research output: Contribution to journalArticlepeer-review

12 Citations (Scopus)


Scandium sulfides were synthesized from its stable oxide, Sc2O3, using CS2 gas. Suitable temperature and time for synthesis were examined experimentally using a constant flow rate of gas mixture of Ar and CS2. The high rate of evaporation from liquid CS2 enhanced formation and stoichiometry of sulfides, and eliminated impurity carbon. Most of parts in the sample were converted to Sc2S3 at 1473 ​K for 7.2 ks, and a transient phase of Sc2O2S was often synthesized after a prolonged time under certain oxygen and sulfur potentials.

Original languageEnglish
Article number121268
JournalJournal of Solid State Chemistry
Publication statusPublished - 2020 May


  • CS gas sulfurization
  • Gas-solid reactions
  • Rare earth compounds
  • Synthesis of scandium sulfides


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