On the role of pore constrictions in gas diffusion electrodes

Water management by gas diffusion electrodes is a fundamental aspect of the performance of electrochemical cells. Herein, we introduce the characteristic constrictions size as a descriptor for microporous layers (MPL). This parameter is calculated by volumetric analysis of focused ion beam nanotomog...

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Detalles Bibliográficos
Autores principales: Bozzetti, Michele, Berger, Anne, Girod, Robin, Chen, Yen-Chun, Büchi, Felix N., Gasteiger, Hubert A., Tileli, Vasiliki
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9350991/
https://www.ncbi.nlm.nih.gov/pubmed/35851630
http://dx.doi.org/10.1039/d2cc02844a
Descripción
Sumario:Water management by gas diffusion electrodes is a fundamental aspect of the performance of electrochemical cells. Herein, we introduce the characteristic constrictions size as a descriptor for microporous layers (MPL). This parameter is calculated by volumetric analysis of focused ion beam nanotomography and compared to mercury intrusion porosimetry measurements.

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