Temperature-dependent capacitance of the electrical double layer
We use atomistic simulations to study the electrical double layer (EDL) at an electrode-electrolyte interface at different temperatures. For a constrained electrode charge, the potential drop over the EDL increases with temperature, a phenomenon known as the thermal voltage rise (TVR). Prior continuum models attributed TVR to expansion of the EDL with increasing temperature; conversely, our simulations with aqueous, organic, and ionic liquids show that the EDL does not expand but that the TVR is caused by a decrease in interfacial permittivity with increasing temperatures.
Authors
- Robert H. Meißner (ORCID: https://orcid.org/0000-0003-1926-114X)
- Ole Nickel (ORCID: https://orcid.org/0009-0008-8489-481X)
- Mathijs Janssen (ORCID: https://orcid.org/0000-0003-0743-4904)
- Alexander Schlaich (ORCID: https://orcid.org/0000-0002-4250-363X)
Institutions
- Universität Hamburg (DE)
- Hamburg Institut (Germany) (DE)
- Helmholtz-Zentrum Hereon (DE)
- Norwegian University of Life Sciences (NO)
- Hamburg University of Technology (DE)
Publication Details
- Journal
- The Journal of Chemical Physics
- Published
- 2026-05-11
- DOI
- https://doi.org/10.1063/5.0318194
- Primary Topic
- Electrostatics and Colloid Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Deutsche Forschungsgemeinschaft
- Norges Forskningsråd