Cabro’s NOXO H catalysts use rhodium as the active metal, providing a unique solution for the thermal purification of polluted gas streams. Rhodium’s higher melting point as compared to platinum, 1,963°C versus 1,768°C, makes it more resistant to sintering, slowing down the deactivation of an active sites. This makes the NOXO H catalysts particularly suitable for high-temperature purification applications where other precious metal catalysts may not be able to withstand the operating conditions.