KCuO3

KCuO₃ is a potassium copper oxide ceramic compound that exists primarily as a research material rather than an established engineering standard. This mixed-valence oxide belongs to the family of layered perovskite and post-perovskite structures, which are of significant interest in solid-state chemistry for their potential electronic and magnetic properties. While not widely deployed in production applications, compounds in this material family are investigated for energy storage, catalysis, and high-temperature ceramic applications where copper-containing oxides offer unique oxidation states and structural flexibility.