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多枝状PdCu纳米合金的结构表征及其电催化性能研究
引用本文:刘美梅,沈闽,李小燕.多枝状PdCu纳米合金的结构表征及其电催化性能研究[J].电子显微学报,2016(3):201-206.
作者姓名:刘美梅  沈闽  李小燕
作者单位:1. 中国科学院福建物质结构研究所,福建 福州,350002;2. 福建江夏学院,福建 福州,350108
基金项目:国家自然科学基金资助项目(No.21271170).
摘    要:本文采用一锅法制备钯铜纳米材料( PdCu),并对PdCu纳米颗粒形貌、成分及微观结构进行表征。 X射线衍射仪( XRD)和透射电子显微镜( TEM)结果表明,PdCu纳米颗粒呈单分散的复杂多枝状结构。多枝状PdCu颗粒的产率高达90%左右,其粒径大小约为(30.85±8.68) nm。乙醇的循环伏安法与计时安培法测试表明PdCu多枝合金有良好的乙醇电催化性能和循环稳定性。

关 键 词:Pd-Cu  TEM  XRD  良好的电催化性能  循环稳定性

Characterization and electrocatalytic performance of branched PdCu alloy nanocatalysts
Abstract:In this paper, a PdCu nanomaterial had been synthesized via a simple Wet Chemical method. The morphology, microstructures and chemistry of PdCu were characterized by X-ray diffraction(XRD) and transmission electron microscopy (TEM). The results showed that PdCu nanoparticles were monodisperse spherical and multibranched shapes. The yield of branched PdCu were approximately 90%. The average size of branched PdCu nanoparticles was ( 30. 85 ± 8. 68 ) nm. PdCu nanocrystals showed superior electrocatalytical performance with excellent cyclic stability.
Keywords:Pd-Cu  TEM  XRD  superior electrical catalytical performance  cyclic stability
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