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- W623462262 abstract "纳米Pt具有较高的氧还原催化活性,但抗甲醇性不足,对直接甲醇燃料电池的性能产生影响。本文采用胶体模板法制备Mcore-Ptshell（M=Fe、Co、Ni）核壳型纳米粒子,用XRD和TEM表征纳米粒子的微观形貌和结构,动电位法和交流阻抗考察电催化活性和抗甲醇性。结果显示,Mcore-Ptshell纳米粒子的平均粒径约为10 nm,壳层厚度约为2~3 nm,3种催化材料的氧还原活性均高于碳载纳米Pt,抗甲醇性也有明显提高,其中Fecore,1-Ptshell,1/C的活性最高,峰电流密度达到0.5833 mA.cm-2,Cocore,1-Ptshell,1/C次之,Nicore,1-Ptshell,1/C最低;Fecore,1-Ptshell,1/C与Nicore,1-Ptshell,1/C的抗甲醇性相当,略好于Cocore,1-Ptshell,1/C。" @default.
- W623462262 created "2016-06-24" @default.
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- W623462262 date "2011-01-01" @default.
- W623462262 modified "2023-09-23" @default.
- W623462262 title "M_（core）-Pt_（shell）（M=Fe、Co、Ni）纳米粒子电催化氧还原的对比研究" @default.
- W623462262 hasPublicationYear "2011" @default.
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