Fabrication and formation mechanism of Ce2O3-CeO2-CuO-MnO2/CNTs catalysts and application in low-temperature NO reduction with NH3

摘要

Ce2O3-CeO2-CuO-MnO2/CNTs catalysts were synthesized via a redox strategy, and presented 58-85% NO conversion at 80-180 degrees C. The 6% Ce2O3-CeO2-CuO-MnO2/CNTs catalyst displayed the optimal activity, which may be owing to the generation of amorphous mixed metal-oxide catalysts, and higher contents of Ce3+ and surface oxygen (O-y). The formation mechanism of the catalysts was proposed.