Abstract:Ni-based catalysts,as active and stable non-noble metal catalysts in alkaline solutions are widely used in the research of small molecule electrocatalytic oxidation.The Ni/NiO nanoparticles were anchoring on phosphorous doped carbon nanotubes for electrocatalytic methanol oxidation.Efficient catalytic activity and stability in electrocatalytic reaction were obtained.The NiO/Ni-PCNTs with a low nickel loading shows an mass activity of 6 800 mA mg-1 at the peak potential of 3%,while that of its undoped counterpart is 2 070 mA mg-1.In addition both the onset and oxidation peak potentials of NiO/Ni-PCNTs for methanol oxidation shift negatively in comparison to CNTs.We proposed that the small particle size of Ni/NiO nanoparticles,and electronic effect arising from the interactions between PCNTs and Ni/NiO contribute to the improved electrocatalytic performances.