DataVXACS Applied Energy MaterialsPaper
journal article·2021-08-23Open access

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

Melanie Cornelia Paulisch, Marcus Gebhard, David Franzen, André Hilger, Markus Osenberg, Shashidhara Marathe, Christoph Rau, Barbara Ellendorff, Thomas Turek, Christina Roth, Ingo Manke

ACS Applied Energy Materials· Volume 4· Issue 8
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Source abstract

Abstract

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
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Electrochemical Analysis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, 14109 Berlin, Germany

Electrochemical Process Engineering, University Bayreuth, Universitätsstraße 30, 95447 Bayreuth, Germany

Institute of Chemical and Electrochemical Process Engineering, Clausthal University of Technology, Leibnizstrasse 17, 38678 Clausthal-Zellerfeld, Germany

Department of Materials Science and Technology, Technical University Berlin, Hardenbergstraße 36, 10623 Berlin, Germany

Harwell Science & Innovation Campus, Diamond Light Source Ltd, Didcot, Oxfordshire OX11 0DE, United Kingdom

Funding

Deutsche Forschungsgemeinschaft

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