New insight into ion dynamics in nanoporous carbon materials: an application of the step potential electrochemical spectroscopy (SPECS) technique and electrochemical dilatometry

Title: New insight into ion dynamics in nanoporous carbon materials: an application of the step potential electrochemical spectroscopy (SPECS) technique and electrochemical dilatometry
Creator: Galek, Przemyslaw; Bujewska, Paulina; Donne, Scott; Fic, Krzysztof; Menzel, Jakub
Relation: Electrochimica Acta Vol. 377, Issue 1 May 2021, no. 138115
Publisher Link: http://dx.doi.org/10.1016/j.electacta.2021.138115
Publisher: Elsevier
Resource Type: journal article
Date: 2021
Description: This paper reports on the charging mechanism of an activated carbon electrode in a symmetric electro-chemical capacitor operating in an ionic liquid electrolyte (EMIm⁺ TFSI⁻). With the application of step potential electrochemical spectroscopy (SPECS) and electrochemical dilatometry, it is determined that the electrical double-layer formation mechanism strongly depends on the porous structure of the electrode material. Furthermore, SPECS calculations allow us to separate and quantify the charge component responsible for the ionic movement.
Subject: electrochemical capacitors; electrochemical dilatometry; carbon materials; ionic liquids
Identifier: http://hdl.handle.net/1959.13/1434554
Identifier: uon:39455
Identifier: ISSN:0013-4686
Language: eng
Reviewed

		Thumbnail	File	Description	Size	Format