Nickel copper oxide refers to mixed oxide compounds containing nickel and copper. These materials are often complex oxides where nickel and copper ions share crystal lattice sites. Common structures include spinel, delafossite, and perovskite types, depending on the specific stoichiometry and synthesis conditions. Their properties are highly tunable by adjusting the Ni/Cu ratio and processing methods.

(nickel copper oxide)

A primary application area is catalysis. Nickel copper oxides demonstrate excellent activity and stability, particularly for oxidation reactions. They are highly effective catalysts for the complete combustion of methane and other hydrocarbons, important for reducing emissions from natural gas vehicles and power generation. Their mixed valence states (Ni²⁺/Ni³⁺, Cu⁺/Cu²⁺) facilitate efficient oxygen transfer and redox cycles crucial for catalytic activity.

These oxides also show significant promise in electrochemical applications. They are investigated as potential electrode materials for supercapacitors and lithium-ion batteries due to their good electrical conductivity (especially copper-rich compositions) and high theoretical specific capacitance arising from rich redox chemistry. Their ability to undergo reversible faradaic reactions makes them suitable for energy storage.

(nickel copper oxide)

Synthesis typically involves solid-state reactions, co-precipitation, sol-gel methods, or hydrothermal techniques. Precise control over composition, morphology, and particle size is vital for optimizing performance. Research continues to focus on enhancing their catalytic efficiency, stability at high temperatures, and electrochemical performance through nanostructuring, doping, or forming composites. Nickel copper oxides represent a versatile and important class of functional materials bridging catalysis and energy technologies.
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