Through-Space Charge Interaction Substituent Effects in Molecular Catalysis Leading to the Design of the Most Efficient Catalyst of CO2-to-CO Electrochemical Conversion

2016 ◽  
Vol 138 (51) ◽  
pp. 16639-16644 ◽  
Author(s):  
Iban Azcarate ◽  
Cyrille Costentin ◽  
Marc Robert ◽  
Jean-Michel Savéant
Keyword(s):  
Space Charge ◽  
Substituent Effects ◽  
Efficient Catalyst ◽  
Electrochemical Conversion ◽  
Charge Interaction ◽  
Molecular Catalysis

Correction of the deterministic part of space–charge interaction in momentum microscopy of charged particles

2015 ◽  
Vol 159 ◽  
pp. 488-496 ◽  
Author(s):  
G. Schönhense ◽  
K. Medjanik ◽  
C. Tusche ◽  
M. de Loos ◽  
B. van der Geer ◽  
...  
Keyword(s):  
Space Charge ◽  
Charged Particles ◽  
Charge Interaction

Electron holography of interfaces in electroceramics

1993 ◽  
Vol 51 ◽  
pp. 1088-1089
Author(s):  
Vinayak P. Dravid ◽  
V. Ravikumar ◽  
Richard Plass
Keyword(s):  
Space Charge ◽  
Direct Evidence ◽  
Materials Science ◽  
Theoretical Work ◽  
Electron Holography ◽  
Resolution Limit ◽  
Interference Phenomenon ◽  
X Ray ◽  
Electron Sources ◽  
Science Community

With the advent of coherent electron sources with cold field emission guns (cFEGs), it has become possible to utilize the coherent interference phenomenon and perform “practical” electron holography. Historically, holography was envisioned to extent the resolution limit by compensating coherent aberrations. Indeed such work has been done with reasonable success in a few laboratories around the world. However, it is the ability of electron holography to map electrical and magnetic fields which has caught considerable attention of materials science community.There has been considerable theoretical work on formation of space charge on surfaces and internal interfaces. In particular, formation and nature of space charge have important implications for the performance of numerous electroceramics which derive their useful properties from electrically active grain boundaries. Bonnell and coworkers, in their elegant STM experiments provided the direct evidence for GB space charge and its sign, while Chiang et al. used the indirect but powerful technique of x-ray microchemical profiling across GBs to infer the nature of space charge.

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