Synthesis and Characterization of Cu-Pt Bimetallic Nanoparticles

被引：4
|
作者：
Zheng, Xusheng [1 ,2 ]
Liu, Shoujie [1 ]
Chen, Xing [1 ]
Cheng, Jie [1 ,2 ]
Si, Cheng [2 ]
Pan, Zhiyun [1 ]
Marcelli, Augosto [3 ]
Chu, Wangsheng [1 ,2 ]
Wu, Ziyu [1 ,2 ]
机构：
[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China
[2] Inst High Energy Phys, Beijing Synchrotron Radiat Fac, Beijing 100049, Peoples R China
[3] Inst Nazionale Fis Nucl, Lab Nazionali Frascati, Frascati 00044, Italy
来源：
15TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS15) | 2013年 / 430卷
基金：
中国国家自然科学基金;
关键词：
ELECTROCATALYTIC ACTIVITY; ELECTRONIC-STRUCTURE; REDUCTION; OXYGEN; CATALYSTS; ALLOYS;
D O I：
10.1088/1742-6596/430/1/012037
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Pt-based alloys have recently triggered a lot of attentions due to their important potential industrial applications. They provide great opportunities for the development of low-cost and high-performance fuel-cell catalysts. Many studies have already pointed out the excellent physico-chemical properties of Pt-based alloys, intimately related to their internal structure. Great efforts have been spent to characterize shape, homogeneity, dispersion, alloying extent and kinetic growth of Pt-based nano-particles. Here, we present Cu-Pt bimetallic nano-particles synthesized by the thermal decomposition method under oleylamine and OE coordination. HRTEM images show that Cu-Pt nanostructures having size of about 1.2 nm includes about 35 atoms capped by the surfactant with OA. Accurate structural information of this system has been obtained by XRD and XAFS. A charge transfer mechanism has been observed and Pt occupied Cu sites in these Cu-Pt nanoparticles.
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页数：6
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