The catalytic partial oxidation of methane to syngas over Ni/Al~2O~3, Pt/Al~2O~3 and a series of Pt-Ni/Al~2O~3 catalysts was investigated. It was found that Pt-Ni/Al~2O~3 catalysts exhibit higher activity and stability than Ni/Al~2O~3 and Pt/Al~2O~3. TPR and TPD methods were used to characterize Pt-Ni bimetallic interactions in the catalysts. A series of Pt-Ni/Al~2O~3 catalysts and unsupported Pt-Ni samples were studied by XRD and XPS. It was found the formation of Pt-Ni alloy in the Pt-Ni/Al~2O~3 catalysts and the enrichment of platinum on the surface of the catalysts. It is concluded that the higher activity and stability of Pt-Ni/Al~2O~3 catalysts were caused by Pt- Ni bimetallic interactions.

Key words: MULTIMETAL REFORMING CATALYST, PLATINUM, NICKEL, ALUMIN IUM OXIDE, REACTION PROPERTIES, CATALYTIC ACTIVITY, STABILITY, INTERACTIONS, CHARACTERIZATION, SYNTHETIC GAS