CoYO2S

CoYO₂S is a mixed-metal oxide-sulfide ceramic compound containing cobalt and yttrium, representing an emerging functional ceramic in the oxysulfide materials family. This compound is primarily of research interest for applications requiring combined ionic and electronic conductivity, particularly in energy conversion and storage systems where dual-phase ceramics offer advantages over single-component oxides or sulfides. The material's potential utility stems from its ability to combine oxide stability with sulfide conductivity, making it a candidate for next-generation electrochemical devices, though industrial-scale applications remain limited and further development is ongoing.