Chemical-sensitive Electron Tomography for Nanomaterials  

作　　者：LIU Liangwei FENG Shiqiang HAN Lili 

机构地区：[1]State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,P.R.China [2]Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China,Fuzhou 350108,P.R.China [3]University of Chinese Academy of Sciences,Beijing 101408,P.R.China

出　　处：《Chemical Research in Chinese Universities》2025年第2期222-236,共15页高等学校化学研究(英文版)

基　　金：supported by the National Key Research and Development Program of China(No.2022YFA1505700);the National Natural Science Foundation of China(Nos.22475214,22205232);the Talent Plan of Shanghai Branch,Chinese Academy of Sciences(No.CASSHB-QNPD-2023-020);the Natural Science Foundation of Fujian Province,China(No.2023J06044);the Self-deployment Project Research Program of Haixi Institutes,Chinese Academy of Sciences(Nos.CXZX-2022-JQ06,CXZX-2022-GH03).

摘　　要：Nanomaterials have greatly received interest in various fields due to their excellent activity,typically attributed to their nanoscale physical and chemical properties.Transmission electron microscopy(TEM)as a powerful tool for characterizing nanomaterials can offer microscopic information with high spatial resolution.However,TEM faces challenges in obtaining information along the electron beam direction(Z direction),which limits its ability to explore the unique characteristics of nanomaterials on a three-dimensional(3D)scale.Electron tomography(ET)is an advanced imaging technique that allows for the visualization of 3D structures of nanomaterials.When combined with energy-dispersive X-ray spectroscopy(EDS)or electron energy loss spectroscopy(EELS),it enables researchers to reveal chemical changes in three dimensions,enhancing the understanding of the complex mechanisms underlying changes in chemical properties.This review summarizes and discusses the recent advancements in EDS/EELS(chemical-sensitive)ET imaging techniques,including the traditional reconstruction method,deep learning-based method,and multi-modal method,which provide detailed processes of reconstruction to facilitate the understanding of how they work for related researchers.Moreover,several successful applications are presented to show the capabilities of chemical-sensitive ET in diverse fields.Finally,the existing challenges and solutions are discussed to propel the development of ET imaging techniques.

关 键 词：NANOMATERIAL Electron tomography Three dimension(3D) Energy-dispersive X-ray spectroscopy(EDS) Electron energy loss spectroscopy 

分 类 号：O657.3[理学—分析化学]