Mechano-Chemical Synthesis of Silver Ion Conducting Materials in the System AgI-Ag2S-SiS2.

DOI Web Site 被引用文献3件 参考文献6件
  • Peng Huifen
    Department of Chemistry, Konan University
  • Machida Nobuya
    Department of Chemistry, Konan University High Technology Research Center, Konan University
  • Shigematsu Toshihiko
    Department of Chemistry, Konan University High Technology Research Center, Konan University

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Silver ion-conducting materials were synthesized for the composition xAgI⋅(100-x) (0.6Ag2S⋅0.4SiS2) (mol%) (0≤x≤90) by use of high-energy ball-milling process. Ball milling more than 40h led to the formation of amorphous samples in the composition range of 0 to 65 mol% AgI. On the other hand, the ball-milled samples with AgI content more than 70 mol% composed of amorphous phase and γ-AgI crystalline phase. Silver ion conductivity of the amorphous samples exponentially increased with an increase in the AgI content, and activation energies for conduction correspondingly decreased. The ball-milled 65AgI⋅21Ag2S⋅14SiS2 (mol%) sample showed the highest silver ion conductivity of 2.7×100 Sm-1 at 298 K and the lowest activation energy of 20.5 kJmol-1 among the obtained amorphous samples.

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