Inorganic Chemistry and Catalysis, Debye Institute for Nanomaterials Science, Utrecht University, Sorbonnelaan 16, 3584 CA Utrecht, The Netherlands.
Chemphyschem. 2010 Apr 6;11(5):951-62. doi: 10.1002/cphc.200901023.
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.
本文回顾了原位扫描透射 X 射线显微镜（STXM）的现状，重点介绍了与电子显微镜相比，STXM 技术的能力。简要介绍了 X 射线吸收光谱（XAS）的实验方面和解释，并讨论了决定原位 XAS 和原位 STXM 研究潜在应用的实验边界条件。利用钴和铁费托催化剂作为实例，概述了工作条件下催化剂的纳米级化学成像。在讨论中，我们对 STXM-XAS 和 STEM-EELS（扫描透射电子显微镜-电子能量损失光谱）测量进行了批判性比较，并指出了原位催化固体和相关纳米材料纳米成像的一些未来方向。
