In-situ Scanning Transmission X-Ray Microscopy of Catalytic Solids and Related Nanomaterials

被引：98

作者：

de Groot, Frank M. F. ^{[1
]}

de Smit, Emiel ^{[1
]}

van Schooneveld, Matti M. ^{[1
]}

Aramburo, Luis R. ^{[1
]}

Weckhuysen, Bert M. ^{[1
]}

机构：

[1] Univ Utrecht, Debye Inst Nanomat Sci, NL-3584 CA Utrecht, Netherlands

来源：

CHEMPHYSCHEM | 2010年 / 11卷 / 05期

基金：

美国国家科学基金会;

关键词：

electron microscopy; Fischer-Tropsch catalysts; in-situ scanning transmission X-ray microscopy (STXM); nanomaterials; ADVANCED LIGHT-SOURCE; OVER-EXCHANGED FE/ZSM5; ELECTRON-MICROSCOPY; ABSORPTION-SPECTROSCOPY; ATOMIC-SCALE; CHEMICAL CONTRAST; RADIATION-DAMAGE; BESSY-II; SPECTROMICROSCOPY; EDGE;

D O I：

10.1002/cphc.200901023

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：

The present status of in-situ scanning transmission X-ray microscopy (STXM) is reviewed, with an emphasis on the abilities of the STXM technique in comparison with electron microscopy. The experimental aspects and interpretation of X-ray absorption spectroscopy (XAS) are briefly introduced and the experimental boundary conditions that determine the potential applications for in-situ XAS and in-situ STXM studies are discussed. Nanoscale chemical imaging of catalysts under working conditions is outlined using cobalt and iron Fischer-Tropsch catalysts as showcases. In the discussion, we critically compare STXM-XAS and STEM-EELS (scanning transmission electron microscopy-electron energy loss spectroscopy) measurements and indicate some future directions of in-situ nanoscale imaging of catalytic solids and related nanomaterials.

引用

页码：951 / 962

页数：12

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