I-cobalt tetroxide yimathiriyeli yesinyithi ye-oxide yenguqu.I-Nano-cobalt tetroxide yinto ebalulekileyo yamagnetic kunye ne-P-type semiconductor, enexabiso elibalulekileyo lesicelo kwiinkalo ezininzi, ezifana ne-heterogeneous catalysis, izinto ze-anode ze-lithium-ion rechargeable batterys, solid-state sensors, izixhobo ze-electrochromic, izinto ezifunxa amandla elanga. kunye nebala.