Facile Synthesis and Characterization of PtCu Core-Shell and Alloy Nanoparticles

被引：13

作者：

Chandran, Ramkumar ^{[1
]}

Dharmalingam, Sangeetha ^{[1
]}

机构：

[1] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2014年 / 14卷 / 09期

关键词：

Core-Shell; Plasmon; Emission; Dealloying; OXYGEN REDUCTION; SONOCHEMICAL SYNTHESIS; COPPER NANOPARTICLES; NICKEL NANOPARTICLES; ELECTROCATALYSTS; CU; NANOSTRUCTURES; PERFORMANCE; CATALYSTS; CLUSTERS;

D O I：

10.1166/jnn.2014.8939

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A facile technique for the synthesis of PtCu core-shell nanoparticles (Pt@Cu and Cu@Pt) of size 10-15 nm by successive and co-reduction method is reported in this study. Optical studies such as UV-Vis and PL emission confirmed the formation of core-shell nanoparticles. The influence of particle segregation on alloy formation was studied. XRD studies revealed that the alloy formed after annealing of the core-shell nanoparticles was PtCu and PtCu3 and their average particle size was calculated to be 18 and 20 nm, respectively. The electrochemical studies of the core-shell and alloy nanoparticles revealed the segregation pattern and their stability.

引用

页码：6957 / 6964

页数：8

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