- 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
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