Design and Application of a Gas Diffusion Electrode (GDE) Cell for Operando and In Situ Studies
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Presented here is an electrochemical three-electrode Gas Diffusion Electrode (GDE) cell tailored for operando and in situ investigations of electrocatalytic processes, with a particular focus on X-ray scattering studies. The optimized cell is engineered to accommodate the minimal sample-detector distances requisite for comprehensive X-ray total scattering investigations. An in-depth understanding of catalytic processes requires their study under ‘working’ conditions. Configured as a flow-cell, the setup therefore enables the examination of electrocatalysts under high current densities and associated gas evolution phenomena, particularly pertinent for reactions like the oxygen evolution reaction (OER). Notably, its transparency simplifies cell alignment, troubleshooting, and facilitates scans through the catalyst layer, crucial for background corrections. Demonstrating its versatility, we showcase its utility through Small Angle X-ray Scattering (SAXS), X-ray Diffraction (XRD), and X-ray Pair Distribution Function (PDF) analyses of total scattering data.
Original language | English |
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Journal | Chimia |
Volume | 78 |
Issue number | 5 |
Pages (from-to) | 344-348 |
Number of pages | 5 |
ISSN | 0009-4293 |
DOIs | |
Publication status | Published - 2024 |
Bibliographical note
Funding Information:
The authors acknowledge support from the Swiss National Science Foundation (SNSF) via project No. 200021_184742 and from the Danish National Research Foundation Center for High Entropy Alloy Catalysis (DNRF 149).
Publisher Copyright:
© 2024 Swiss Chemical Society. All rights reserved.
- Electrocatalysis, Gas diffusion electrode, High current density, Operando studies
Research areas
ID: 398243312