The effect of microstructural properties of CoCr2O4 spinel oxides on catalytic combustion of dichloromethane

- Spinel CoCr2O4 oxides are very active and selective for dichloromethane oxidation.
- High temperature calcination results in replacement of Co by Cr in octahedral sites.
- Surface enriched Cr ions lead to enhanced reducibility/acidity and high performance.
- Quantitative analyses show Cr6+ species had much higher TOF than Cr3+ species.