摘要
Zeolite-supported metal catalysts have important applications in various catalytic reactions,but unveiling their atomic-scale structures is always a grand challenge.The developed transmission electron microscopy(TEM)characterization techniques,e.g.,integrated differential-phase contrast(iDPC)scanning transmission electron microscopy(STEM)is emerging as a powerful tool for visualizing the electron beam-sensitive materials at atomic resolution,thus,providing new opportunities for imaging the exact configurations of metal species in the various channels of zeolites.This emerging topic summarizes recent progress utilizing iDPC-STEM-related technique for determination of the structures of metal species in zeolites that should offer insights into the structure-property relationships of zeolite-supported metal catalysts.A brief perspective about the new TEM technique is also presented,showing prospects in this field that will stimulate further scientific research in zeolite-supported metal catalysts.
基金
Theauthors thank the National Natural Science Foundation of China(U21A20326)
Fundamental Research Funds for the Central Universities,Shanghai Rising-star Program(20QA1402400)
the Program for Professor of Special Appointment(Eastern Scholar)at Shanghai Institutions of Higher Learning.Additional。
