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Chin. Phys. B, 2018, Vol. 27(5): 056804    DOI: 10.1088/1674-1056/27/5/056804
Special Issue: TOPICAL REVIEW — Electron microscopy methods for emergent materials and life sciences
TOPICAL REVIEW—Electron microscopy methods for the emergent materials and life sciences Prev   Next  

High-resolution electron microscopy for heterogeneous catalysis research

Yong Zhu(朱勇), Mingquan Xu(许名权), Wu Zhou(周武)
School of Physical Sciences and CAS Center for Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
Abstract  Heterogeneous catalysts are the most important catalysts in industrial reactions. Nanocatalysts, with size ranging from hundreds of nanometers to the atomic scale, possess activities that are closely connected to their structural characteristics such as particle size, surface morphology, and three-dimensional topography. Recently, the development of advanced analytical transmission electron microscopy (TEM) techniques, especially quantitative high-angle annular dark-field (HAADF) imaging and high-energy resolution spectroscopy analysis in scanning transmission electron microscopy (STEM) at the atomic scale, strengthens the power of (S)TEM in analyzing the structural/chemical information of heterogeneous catalysts. Three-dimensional reconstruction from two-dimensional projected images and the real-time recording of structural evolution during catalytic reactions using in-situ (S)TEM methods further broaden the scope of (S)TEM observation. The atomic-scale structural information obtained from high-resolution (S)TEM has proven to be of significance for better understanding and designing of new catalysts with enhanced performance.
Keywords:  atomic resolution      electron microscopy      three-dimensional (3D) reconstruction      in-situ      heterogeneous catalysts  
Received:  03 March 2018      Revised:  10 April 2018      Accepted manuscript online: 
PACS:  68.37.Og (High-resolution transmission electron microscopy (HRTEM))  
  79.20.Uv (Electron energy loss spectroscopy)  
  82.65.+r (Surface and interface chemistry; heterogeneous catalysis at surfaces)  
Corresponding Authors:  Wu Zhou     E-mail:  wuzhou@ucas.ac.cn

Cite this article: 

Yong Zhu(朱勇), Mingquan Xu(许名权), Wu Zhou(周武) High-resolution electron microscopy for heterogeneous catalysis research 2018 Chin. Phys. B 27 056804

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