Fine and well dispersed Pt-Cu bimetallic nanoparticles stabilized by polyvinyl pyrrolidone （PVP） were synthesized by alkaline polyol method. The molar ratio of Pt to Cu was 1 ： 1. Further, the Pt-Cu bimetallic nano...Fine and well dispersed Pt-Cu bimetallic nanoparticles stabilized by polyvinyl pyrrolidone （PVP） were synthesized by alkaline polyol method. The molar ratio of Pt to Cu was 1 ： 1. Further, the Pt-Cu bimetallic nanoparticles were supported on alumina and their catalytic behavior in methane combustion was investigated. The as-prepared as well as the supported Pt-Cu nanoparticles were characterized by transmission elec- tron microscopy （TEM）, X-ray photoelectron spectroscopy （XPS）, fractal analysis and X-ray diffraction （XRD）. The dependence of methane combustion on the morphology and surface composition of Pt-Cu nanoparticles was analyzed based on the experimental results.展开更多
文摘Fine and well dispersed Pt-Cu bimetallic nanoparticles stabilized by polyvinyl pyrrolidone （PVP） were synthesized by alkaline polyol method. The molar ratio of Pt to Cu was 1 ： 1. Further, the Pt-Cu bimetallic nanoparticles were supported on alumina and their catalytic behavior in methane combustion was investigated. The as-prepared as well as the supported Pt-Cu nanoparticles were characterized by transmission elec- tron microscopy （TEM）, X-ray photoelectron spectroscopy （XPS）, fractal analysis and X-ray diffraction （XRD）. The dependence of methane combustion on the morphology and surface composition of Pt-Cu nanoparticles was analyzed based on the experimental results.
