Surface properties and catalytic performance of Pt-Ag supported on silica - The effect of preparation methods

- The kind of bimetallic particles is determined by the silica functionalizing agent.
- The nature of organosilane and the method of modification influence alloy formation.
- Core-shell structure is produced only on 1Ag2Pt/Si-M sample.
- Selectivity in methanol oxidation depends on metal loading and dispersion.
- Activity is influenced by the interaction between Pt and Ag in bimetallic particles.