High-resolution electron microscopy for heterogeneous catalysis research

doi:10.1088/1674-1056/27/5/056804

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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