Structure Determination of Superatom Metallic Clusters Using Rapid Scanning Electron Diffraction

被引：11

作者：

Bruma, Alina ^{[1
]}

Santiago, Ulises ^{[1
]}

Alducin, Diego ^{[1
]}

Villa, German Plascencia ^{[1
]}

Whetten, Robert L. ^{[1
]}

Ponce, Arturo ^{[1
]}

Mariscal, Marcelo ^{[2
]}

Jose-Yacaman, Miguel ^{[1
]}

机构：

[1] Univ Texas San Antonio, Dept Phys & Astron, One UTSA Circle, San Antonio, TX 78249 USA

[2] Univ Nacl Cordoba, Sch Chem Sci, Ave Haya de la Torre Cordoba, RA-5000 Cordoba, Argentina

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2016年 / 120卷 / 03期

基金：

美国国家卫生研究院;

关键词：

CRYSTAL-STRUCTURE; GOLD NANOPARTICLES; RADIATION-DAMAGE; RESOLUTION; NANOCLUSTERS; MICROSCOPY; TEM;

D O I：

10.1021/acs.jpcc.5b09524

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Experimental analysis of electron diffraction patterns for ligand-stabilized gold clusters in transmission electron microscopy is a cumbersome procedure, due to electron beam-induced irradiation damage. We propose herein a method for instantaneous data collection using scanning nanobeam electron diffraction and the subsequent determination of the crystal metallic clusters. The procedure has been tested on a known structure, namely Au-102(p-MBA)(44), nanoclusters and has been compared with their structure theoretically determined by ones previously obtained from X-ray diffraction analysis. The method can be unambiguously applied for the case of any nanoscale system susceptible to electron beam damage and it is capable to register the rotation effect on the metallic clusters caused due to the electron beam interaction during the raster scanning on the sample.

引用

页码：1902 / 1908

页数：7

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