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A simple one-pot method was developed to prepare Pt Ni alloy nanoparticles,which can be self-decorated on multiwalled carbon nanotubes in [BMIm][BF4] ionic liquid.The nanohybrids are targeting stable nanocatalysts for fuel cell applications.The sizes of the supported Pt Ni nanoparticles are uniform and as small as 1–2 nm.Pt-to-Ni ratio was controllable by simply selecting a Pt Ni alloy target.The alloy nanoparticles with Pt-to-Ni ratio of 1:1 show high catalytic activity and stability for methanol electro-oxidation.The performance is much higher compared with those of both Pt-only nanoparticles and commercial Pt/C catalyst.The electronic structure characterization on the Pt Ni nanoparticles demonstrates that the electrons are transferred from Ni to Pt,which can suppress the CO poisoning effect.
A simple one-pot method was developed to prepare Pt Ni alloy nanoparticles, which can be self-decorated on multiwalled carbon nanotubes in [BMIm] [BF4] ionic liquid. The nanohybrids are targeting stable nanocatalysts for fuel cell applications. Sizes of the Pt-to-Ni ratio was controllable by simply selecting a Pt Ni alloy target. The alloy nanoparticles with Pt-to-Ni ratio of 1: 1 show high catalytic activity and stability for methanol electro-oxidation. the performance is much higher compared with those of both Pt-only nanoparticles and commercial Pt / C catalyst. the electronic structure characterization on the Pt Ni nanoparticles demonstrates that the electrons are transferred from Ni to Pt, which can suppress the CO poisoning effect.