Ce4FeSe6O

Ce₄FeSe₆O is a rare-earth ceramic compound containing cerium, iron, selenium, and oxygen, belonging to the family of mixed-valence metal selenides and oxides. This is a research-phase material studied primarily for its potential electrochemical and photocatalytic properties rather than a widely commercialized engineering ceramic. Interest in this compound stems from its ability to combine rare-earth and transition-metal functionality, making it a candidate for energy conversion applications, though current use remains limited to laboratory investigation and development.