Indium oxide cubes prepared by hydrothermal synthesis as catalysts for CO oxidation

Indium oxide cubes have been prepared by hydrothermal synthesis. The cubes exhibited significantly better catalytic activity towards CO oxidation compared to commercial In2O3 powder and nanoparticles. With the addition of a metal co-catalyst, the performance could be further improved, with the T50 temperatures (temperature at which 50% of CO is converted) obtained for different metals exhibiting the following trend: Pd > Cu > Pt. The obtained results clearly demonstrate the potential of In2O3 as an active oxide support for CO oxidation.