Factors affecting the spontaneous adsorption of Bi(III) onto Pt and PtRu nanoparticles

- Adsorption of Bi on Pt follows a Temkin-type isotherm.
- The pH dependence indicates that the adsorbing species is [Bi6O4(OH)4]6+.
- Both Pt and PtRu nanoparticles are activated for formic acid oxidation.
- Activities depend on the Bi coverage, but not the Bi adsorption conditions.