The chemical application of high-resolution electron tomography: Bright field or dark field?

被引：51

作者：

Thomas, JM

Midgley, PA

Yates, TJV

Barnard, JS

Raja, R

Arslan, I

Weyland, M

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[2] UCL Royal Inst Great Britain, Davy Faraday Res Lab, London W1X 4BS, England

[3] Univ Cambridge, Chem Lab, Cambridge CB2 1EW, England

[4] Cornell Univ, Dept Appl & Engn Phys, Ithaca, NY 14853 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2004年 / 43卷 / 48期

关键词：

electron tomography; heterogeneous catalysis; nanoparticles; scanning probe microscopy;

D O I：

10.1002/anie.200461453

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Visualizing 3D structures (especially of supported catalysts) by the nondestructive method of electron tomography is best accomplished by high-angle annular dark-field (HAADF) rather than by bright-field (BF) imaging; bimetallic clusters of [Ru10Pt2] (diameter ca. 0.4 nm), supported on nanoporous silica, are invisible in BF but readily visible in HAADF images (see pictures).

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页码：6745 / 6747

页数：3

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