Pt/CeO2 ensemble catalysts show great potential for hydrocarbon oxidation, but the nature of active sites and interfacial evolution during reaction has been debated. Here, the authors demonstrate metallic Pt ensembles serve as the true active sites for C3H6 oxidation, and confirm dynamic nature of oxygen activation with the threshold temperature around 170 °C.
- Zihao Li
- Xingyan Chen
- Naiqiang Yan
