▎ 摘　　要

Graphene oxide (GO)/CeO2 nanocomposite supported Pt catalysts were prepared for formaldehyde (HCHO) oxidation at room temperature. The investigation showed that the addition of GO could enhance the catalytic performance of Pt supported on CeO2 (Pt/Ce) catalyst mainly due to the functional features of GO nanosheets. The content of GO in the composite catalyst had an effect on the catalytic activity of the prepared catalysts. Formate species were the main intermediates during HCHO oxidation over GO/CeO2 nanocomposite supported Pt catalyst investigated by in situ DRIFTS. The most active GO/CeO2 supported Pt catalyst (Pt/Ce-2) exhibited a good stability for removal of HCHO, indicating it a potential alternative catalyst for complete decomposition of HCHO into CO2 and H2O at room temperature.