Design and Application of a Gas Diffusion Electrode (GDE) Cell for Operando and In Situ Studies.

Wiberg, Gustav K H; Pittkowski, Rebecca K; Punke, Stefanie; Aalling-Frederiksen, Olivia; Jensen, Kirsten M Ø; Arenz, Matthias (2024). Design and Application of a Gas Diffusion Electrode (GDE) Cell for Operando and In Situ Studies. CHIMIA, 78(5), pp. 344-348. Schweizerische Chemische Gesellschaft 10.2533/chimia.2024.344

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Presented here is an electrochemical three-electrode Gas Diffusion Electrode (GDE) cell tailored for operandoand 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.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP)

UniBE Contributor:

Wiberg, Gustav Karl Henrik, Arenz, Matthias

Subjects:

500 Science > 570 Life sciences; biology
500 Science > 540 Chemistry

ISSN:

0009-4293

Publisher:

Schweizerische Chemische Gesellschaft

Language:

English

Submitter:

Pubmed Import

Date Deposited:

03 Jun 2024 14:57

Last Modified:

04 Jun 2024 15:30

Publisher DOI:

10.2533/chimia.2024.344

PubMed ID:

38822779

Uncontrolled Keywords:

Electrocatalysis Gas diffusion electrode High current density Operando studies

BORIS DOI:

10.48350/197445

URI:

https://boris.unibe.ch/id/eprint/197445

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