In this reaction, carbon is oxidised because it gains oxygen. At the same time, copper oxide is reduced because oxygen is removed from it.

Oxidation reactions occurring on a catalyst rely on ... catalyst to lose surface oxygen groups and causes the exchange of copper and oxygen near the catalyst surface, thinning the active CuO ...

The spontaneity of redox reactions is demonstrated using copper, zinc, and silver, and their cations. When solid zinc is placed in Cu2+ solution, the blue color of the solution becomes less intense as ...