oxidm

Oxidm is a term used in materials science to describe a class of oxide-based materials defined by a controlled oxide lattice with variable oxidation states of the constituent metals. The name reflects emphasis on oxide chemistry and tunable properties via oxidation state and oxygen vacancy control.

Overview: Oxidm compounds often adopt perovskite- or fluorite-related structures and incorporate transition metals such as manganese, iron, cobalt, or nickel. The presence of oxygen vacancies and interstitials enables mixed ionic-electronic conduction and redox activity.

Properties: They show potential for mixed ionic-electronic conductivity, adjustable band gaps, and high stability under redox cycling, depending on composition and defect chemistry.

Synthesis: Production routes include solid-state synthesis, sol-gel processing, and pulsed laser deposition for thin films. Oxygen partial pressure during synthesis is a key parameter to tune vacancy concentration.

Applications: Relevant areas include solid oxide fuel cells, gas sensors, catalysis, and memristive or neuromorphic devices where redox-active oxide materials are advantageous.

Research and challenges: Major challenges include controlling defect populations reproducibly, ensuring long-term stability, and integrating such materials into practical devices.

See also: oxide materials, perovskite, spinel, oxygen vacancy, ionic conductor.