Lignin-based porous junction for silver-silver chloride reference electrodes

Original scientific paper


  • Stefan Breitenbach Wood K plus – Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, Austria and Institute for Chemical Technology of Inorganic Materials (TIM), Johannes Kepler University Linz, Altenberger Strasse 69, 4040 Linz, Austria
  • Dominik Knapic Institute for Chemical Technology of Inorganic Materials (TIM), Johannes Kepler University Linz
  • Christoph Unterweger Wood K plus – Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, Austria
  • Christian Fuerst Wood K plus – Kompetenzzentrum Holz GmbH, Altenberger Strasse 69, 4040 Linz, Austria
  • Achim Walter Hassel Institute for Chemical Technology of Inorganic Materials (TIM), Johannes Kepler University Linz



Porous carbon material, carbonization, impedance spectroscopy
Graphical Abstract


Carbonized lignin powder was used as a salt bridge for a silver-silver chloride reference electrode. This easy-to-prepare reference electrode exhibited excellent stability in saturated potassium chloride solution. In addition, the electrochemical impedance spectra showed that the prepared reference electrode is stable in acidic, neutral, and basic aqueous solutions (pH 1 - 12) and has similar impedances to its glass frit equivalent.


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30-01-2023 — Updated on 30-01-2023

How to Cite

Breitenbach, S., Knapic, D., Unterweger, C., Fuerst, C., & Hassel, A. W. (2023). Lignin-based porous junction for silver-silver chloride reference electrodes: Original scientific paper. Journal of Electrochemical Science and Engineering, 13(5), 817–824.



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