Co4 B4 O10

Co₄B₄O₁₀ is a cobalt borate ceramic compound that functions as a semiconductor material, combining metallic cobalt with boron oxide to create a crystalline oxide ceramic. This is a specialized research compound rather than a widely commercialized material; cobalt borates are of interest in the broader family of transition metal borates, which have shown potential for optical, catalytic, and electronic applications due to their mixed-valence metal centers and tunable band structures. The material may be explored for optoelectronic devices, catalytic supports, or advanced ceramic applications where cobalt's magnetic and electronic properties combined with borate chemistry offer functionality unavailable in simpler alternatives.