Electrochemical quartz crystal microbalance study of mass transport in thin film of a redox active Ni–Al–Cl layered double hydroxide

2004 ◽  
Vol 572 (1) ◽  
pp. 101-108 ◽  
Author(s):  
Roto Roto ◽  
Akihiko Yamagishi ◽  
Gilles Villemure
Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1832
Author(s):  
Elise Duquesne ◽  
Stéphanie Betelu ◽  
Alain Seron ◽  
Ioannis Ignatiadis ◽  
Hubert Perrot ◽  
...  

Studying the electrogravimetric behavior of Mg/Fe-layered double hydroxide (LDH) nanoparticles with an electrochemical quartz crystal microbalance demonstrates its pseudocapacitance properties of mix cation and anion exchanger. The electrochemical control of the oxidation state of iron constituting the layered sheets allowed anion intercalation/deintercalation into the LDH interlayer space. Concomitantly, in agreement with the pH of zero point of net charge of the Mg/Fe-LDH, the interfacial pH increase via catalyzed hydrogen evolution reaction allows cation electroadsorption onto the external surfaces of the nanoplatelets.


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