Study of the electrical and catalytic properties of spinels with CuFe2−xMnxO4 composition (x = 0, 0.4, 0.8, 1.6 and 2)

- CuFe2−xMnxO4 spinels are catalysts for the total oxidation of methane.
- The activity decreased with increasing Mn content.
- All the solids show both p-type and n-type semiconductivity.
- All the spinels were partially reduced during catalysis.
- All the catalysts are functioning via a heterogeneous redox mechanism.