---
_id: '62814'
abstract:
- lang: eng
  text: Porous carbons are prominent electrode materials in energy storage applications
    such as supercapacitors. However, rational materials development is hampered by
    difficulties in interpreting electrochemical impedance spectra (EIS) and drawing
    conclusions about promising aspects of device improvement. Here, we characterized
    electrodes consisting of activated carbon with polyacrylic acid binder in four
    different concentrations of sulfuric acid, using cyclic voltammetry and electrochemical
    impedance spectroscopy. Both datasets were evaluated with simple equivalent circuits
    and comparatively analyzed. Conductivity of the electrolyte was independently
    measured. Cyclic voltammograms (CV) show larger resistance and capacitance at
    low scan rates. Resistances obtained from EIS are in good agreement with those
    obtained by cyclic voltammograms particularly at high scan rates. The comparison
    against specific electrolyte resistance can reveal whether resistances within
    the solid electrode architecture or resistances within the electrolyte, partially
    confined by pores, are the dominant cause of increased resistance at low scan
    rate. Comparison between CV and EIS points to the main electrode capacitance being
    described by a constant phase element (CPE) used to fit the low-frequency region
    of EIS.
author:
- first_name: Sebastian
  full_name: Reinke, Sebastian
  id: '117727'
  last_name: Reinke
- first_name: Vera
  full_name: Khamitsevich, Vera
  last_name: Khamitsevich
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
citation:
  ama: 'Reinke S, Khamitsevich V, Linnemann J. Complementary Analysis of Cyclic Voltammograms
    and Impedance Spectra of Porous Carbon Electrodes. In: <i>2024 International Workshop
    on Impedance Spectroscopy (IWIS)</i>. IEEE; 2025. doi:<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>'
  apa: Reinke, S., Khamitsevich, V., &#38; Linnemann, J. (2025). Complementary Analysis
    of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes. <i>2024
    International Workshop on Impedance Spectroscopy (IWIS)</i>. <a href="https://doi.org/10.1109/iwis63047.2024.10847115">https://doi.org/10.1109/iwis63047.2024.10847115</a>
  bibtex: '@inproceedings{Reinke_Khamitsevich_Linnemann_2025, title={Complementary
    Analysis of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes},
    DOI={<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>},
    booktitle={2024 International Workshop on Impedance Spectroscopy (IWIS)}, publisher={IEEE},
    author={Reinke, Sebastian and Khamitsevich, Vera and Linnemann, Julia}, year={2025}
    }'
  chicago: Reinke, Sebastian, Vera Khamitsevich, and Julia Linnemann. “Complementary
    Analysis of Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes.”
    In <i>2024 International Workshop on Impedance Spectroscopy (IWIS)</i>. IEEE,
    2025. <a href="https://doi.org/10.1109/iwis63047.2024.10847115">https://doi.org/10.1109/iwis63047.2024.10847115</a>.
  ieee: 'S. Reinke, V. Khamitsevich, and J. Linnemann, “Complementary Analysis of
    Cyclic Voltammograms and Impedance Spectra of Porous Carbon Electrodes,” 2025,
    doi: <a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>.'
  mla: Reinke, Sebastian, et al. “Complementary Analysis of Cyclic Voltammograms and
    Impedance Spectra of Porous Carbon Electrodes.” <i>2024 International Workshop
    on Impedance Spectroscopy (IWIS)</i>, IEEE, 2025, doi:<a href="https://doi.org/10.1109/iwis63047.2024.10847115">10.1109/iwis63047.2024.10847115</a>.
  short: 'S. Reinke, V. Khamitsevich, J. Linnemann, in: 2024 International Workshop
    on Impedance Spectroscopy (IWIS), IEEE, 2025.'
date_created: 2025-12-03T16:06:09Z
date_updated: 2026-01-19T15:41:43Z
department:
- _id: '985'
doi: 10.1109/iwis63047.2024.10847115
extern: '1'
keyword:
- electrochemical impedance spectroscopy
- distorted cyclic voltammograms
- supercapacitors
- carbon
language:
- iso: eng
publication: 2024 International Workshop on Impedance Spectroscopy (IWIS)
publication_status: published
publisher: IEEE
quality_controlled: '1'
status: public
title: Complementary Analysis of Cyclic Voltammograms and Impedance Spectra of Porous
  Carbon Electrodes
type: conference
user_id: '116779'
year: '2025'
...