Synthesis of CuMnOx catalysts by using various precipitants for oxidation of carbon monoxide

Hopcalite (CuMnOx) is one of the best catalysts for carbon monoxide (CO) oxidation at ambient conditions. In present research work we measured the performances of various precipitants (KMnO4, Na2CO3 and KOH) used in the CuMnOx catalysts synthesis by the co-precipitation method and calcined at 300 degrees C temperature. The KMnO4 precipitant used in CuMnOx catalyst has shown that the best catalytic activity, which completely oxidized CO at the lower temperature (T100 = 83 degrees C). The other precipitants used in CuMnOx catalyst synthesis by Na2CO3 as precipitant for CO oxidation was done at (T100=105 degrees C) and KOH used as precipitant in CuMnOx catalyst, which completely oxidized CO (T100=115 degrees C). The calcinations conditions of precursors have huge impact on the performances of resulting catalysts for CO oxidation. The reactive calcinations (RC) conditions (1.5% CO in air) prepared CuMnOx catalysts have shown that the best catalytic activity as compared to the tradition calcinations conditions. The RC route is one of the best calcinations strategies for preparation of highly active CuMnOx catalyst for CO oxidation.