Synthesis and characterization of carbon nanotubes decorated with Pt and PtRu nanoparticles and assessment of their electrocatalytic performance

▶ Pre-formed capped Pt and PtRu NPs were attached to functionalized MWCNTs. ▶ The functionalization strategy showed to influence the electrocatalytic properties. ▶ PtRu hybrid catalysts are the most effective for electrochemical reduction of H2O2. ▶ Non-covalent functionalized CNT hybrids exhibited superior behavior for NH3 oxidation. ▶ PtRu hybrids are more effective in the removal of intermediate poising species.