Fabrication of Stable Cu-Ce Catalyst with Active Interfacial Sites for NOx Elimination by Flame Spray Pyrolysis

The complete conversion of NOx to harmless N2 without N2O formation is crucial for the control air pollution, especially at low temperatures. Cu-based catalysts are promising materials due their cost and high activity in NO dissociation, even comparable noble metals; however, they suffer from stability. Here, we established a Cu-Ce catalyst one step with strong metal–support interaction by flame spray pyrolysis (FSP) method. Almost 100% was achieved 100 °C, completely transferred into temperature (200 °C) FSP-CuCe catalyst, exhibiting excellent performance reduction CO reaction. Moreover, catalytic can stay stable, while 23% lost same condition made co-precipitation (CP) This be attributed synergistic effect abundant active interfacial sites more flexible surface oxygen created during FSP process. technology developed here provides an efficient way fabricate interactions, notable potential design stable catalysts.