Effect of manganese addition to Ni-Cu oxides on their properties and activity in the oxidation of volatile organic compounds

Transition metal oxides are suitable for the reduction of harmful volatile organic compounds in air by total catalytic oxidation. The effect of Mn addition to Ni-Cu oxides was investigated to determine the optimum cation composition for achieving high catalytic performance. The addition of Mn to Ni-Cu oxides led to the formation of Ni-Cu-Mn mixed oxides with spinel structure and Ni-Mn mixed oxides. As the Mn concentration increased, the concentration of metal-bound oxygen raised, while the concentration of oxygen vacancies slightly decreased. A linear correlation was revealed between the surface concentrations of oxygen vacancies and specific reaction rates in ethanol and toluene oxidation.

• Jirátová K., Babii T., Balabánová J., Koštejn M., Maixner J., Topka P., Kovanda F.: Effect of manganese addition to Ni-Cu oxides on properties and activity in the oxidation of volatile organic compounds. Catal. Today 429(1 Mar), 114463, 2024. DOI