Construction of three-dimensional models of bimetallic nanoparticles based on X-ray absorption spectroscopy data

被引：7
作者：
Avakyan, L. A. [1 ]
Srabionyan, V. V. [1 ]
Pryadchenko, V. V. [1 ]
Bulat, N. V. [1 ]
Bugaev, L. A. [1 ]
机构：
[1] Southern Fed Univ, Rostov Na Donu 344090, Russia
来源：
OPTICS AND SPECTROSCOPY | 2016年 / 120卷 / 06期
关键词：
ATOMIC-STRUCTURE; SURFACE-AREA; FUEL-CELL; SHELL; CATALYSTS; ALLOYS; EXAFS; SIZE;
D O I：
10.1134/S0030400X16060035
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A new method for constructing three-dimensional models of bimetallic nanoparticles is proposed. This method, which is based on X-ray absorption spectroscopy data on the number and type of nearest neighbors, provides information on the distribution of types of atoms over the nanoparticle volume. The application of the method to the study of the structures of platinum-copper and platinum-silver nanoparticles of metal-carbon electrocatalysts has allowed to distinguish the nanoparticles with a core-shell structure from the nanoparticles with structure of disordered alloy or clusterized solid solution.
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收藏
页码：926 / 932
页数：7
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