From atoms to grains: Transmission electron microscopy of graphene

MRS Bulletin ◽  
2012 ◽  
Vol 37 (12) ◽  
pp. 1214-1221 ◽  
Author(s):  
Pinshane Y. Huang ◽  
Jannik C. Meyer ◽  
David A. Muller
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Transmission Electron ◽  
Image Position

Abstract

Electron-beam-driven chemical processes during liquid phase transmission electron microscopy

MRS Bulletin ◽  
2020 ◽  
Vol 45 (9) ◽  
pp. 746-753
Author(s):  
Taylor J. Woehl ◽  
Trevor Moser ◽  
James E. Evans ◽  
Frances M. Ross
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Electron Beam ◽  
Liquid Phase ◽  
Chemical Processes ◽  
Transmission Electron ◽  
Phase Transmission ◽  
Image Position

Abstract

scholarly journals Liquid phase transmission electron microscopy for imaging of nanoscale processes in solution

MRS Bulletin ◽  
2020 ◽  
Vol 45 (9) ◽  
pp. 704-712
Author(s):  
Utkur Mirsaidov ◽  
Joseph P. Patterson ◽  
Haimei Zheng
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Liquid Phase ◽  
Transmission Electron ◽  
Phase Transmission ◽  
Image Position

Abstract

Periodic Cation Segregation in Cs0.44[Nb2.54W2.46O14] Quantified by High-Resolution Scanning Transmission Electron Microscopy

2014 ◽  
Vol 20 (5) ◽  
pp. 1453-1462 ◽  
Author(s):  
Markus Heidelmann ◽  
Juri Barthel ◽  
Gerhard Cox ◽  
Thomas E. Weirich
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Scanning Transmission Electron Microscopy ◽  
Intensity Variation ◽  
Unit Cell ◽  
M1 Phase ◽  
Scanning Transmission Electron ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
Image Position

AbstractThe atomic structure of Cs0.44[Nb2.54W2.46O14] closely resembles the structure of the most active catalyst for the synthesis of acrylic acid, the M1 phase of ${\rm Mo}_{{{\rm 10}}} {\rm V}_{{\rm 2}}^{{{\rm 4{\plus}}}} {\rm Nb}_{2} {\rm TeO}_{{{\rm 42}{\minus}x}} $ . Consistently with observations made for the latter compound, the high-angle electron scattering signal recorded by scanning transmission electron microscopy shows a significant intensity variation, which repeats periodically with the projected crystallographic unit cell. The occupation factors for the individual mixed Nb/W atomic columns are extracted from the observed intensity variations. For this purpose, experimental images and simulated images are compared on an identical intensity scale, which enables a quantification of the cation distribution. According to our analysis specific sites possess low tungsten concentrations of 25%, whereas other sites have tungsten concentrations above 70%. These findings allow us to refine the existing structure model of the target compound, which has until now described a uniform distribution of the niobium and tungsten atoms in the unit cell, showing that the similarity between Cs0.44[Nb2.54W2.46O14] and the related catalytic compounds also extends to the level of the cation segregation.

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