Na4CoO3

Na₄CoO₃ is an oxide ceramic compound containing sodium, cobalt, and oxygen, belonging to the family of mixed-metal oxides that are primarily explored in materials research rather than established commercial production. This material is of interest in solid-state chemistry and electrochemistry research, particularly for energy storage and catalytic applications where cobalt-based oxides show promise in battery systems, oxygen evolution reactions, and high-temperature oxidation resistance. The addition of sodium to the cobalt oxide framework modifies electrochemical properties and crystal structure, making it potentially relevant for next-generation electrode materials or catalytic supports, though it remains largely in the experimental phase without widespread industrial adoption.