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Operando Synchrotron Imaging of Electrolyte Distribution in Silver-Based Gas Diffusion Electrodes During Oxygen Reduction Reaction in Highly Alkaline Media

Title data

Paulisch, Melanie Cornelia ; Gebhard, Marcus ; Franzen, David ; Hilger, André ; Osenberg, Markus ; Marathe, Shashidhara ; Rau, Christoph ; Ellendorff, Barbara ; Turek, Thomas ; Roth, Christina ; Manke, Ingo:
Operando Synchrotron Imaging of Electrolyte Distribution in Silver-Based Gas Diffusion Electrodes During Oxygen Reduction Reaction in Highly Alkaline Media.
In: ACS Applied Energy Materials. Vol. 4 (2021) Issue 8 . - pp. 7497-7503.
ISSN 2574-0962
DOI: https://doi.org/10.1021/acsaem.1c01524

Abstract in another language

Understanding how gas diffusion electrodes are working is crucial to improve their performance and cost efficiency. One key issue is the electrolyte distribution during operation. Here, operando synchrotron imaging of the electrolyte distribution in silver-based gas diffusion electrodes is presented. For this purpose, a half-cell compartment was designed for operando synchrotron imaging of chronoamperometric measurements. For the first time, the electrolyte distribution could be analyzed in real time (1 s time resolution) even in individual pores as small as a few micrometers. The detailed analyses of dynamic filling processes are an important step for understanding and improving electrodes.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Electrochemical Process Engineering > Chair Electrochemical Process Engineering - Univ.-Prof. Dr. Christina Roth
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 26 Aug 2021 06:54
Last Modified: 26 Aug 2021 06:54
URI: https://eref.uni-bayreuth.de/id/eprint/66842