Interfacial transport in water electrolyzers to elucidate mass transport losses
Polymer electrolyte membrane (PEM) electrolysis is a promising solution for chemical storage of renewable energy sources by producing clean hydrogen, which then can be paired with a fuel cell to provide on-demand electricity. However, mass transport losses must be minimized, or better yet, eliminated to make the technology viable for practical use. Unfortunately, the nature of product gas evolution in the porous transport layer (PTL) is still not well-understood, as there are highly coupled phenomena that govern the behaviour of product gas. Via past modelling work, we elucidated the strong influence of temperature on oxygen gas accumulation and importance of the catalyst layer and PTL interface. In the proposed work, we will use operando imaging of our custom electrolyzer to identify the nature of oxygen gas accumulation within the PTL and flow fields with concurrent electrochemical performance. Here, we propose to resolve the dynamic bubble transport accompanied with the explanation of how temperature impacts this oxygen gas accumulation at the interfacial regions as a function of increasing current density and temperature.
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The recommended format for citing this dataset in a research publication is in the following format:
Aimy Bazylak; AUVITY Bruno; BATTA Vasant; CHADWICK Eric; CHEVALIER Stephane; Chaeyoung Tina Ham; HELFEN Lukas; Leya R. Kober; KRAUSE Kevin; Jongmin Lee; RANIERI Salvatore; SEIP Tess and ZHU Lijun. (2023). Interfacial transport in water electrolyzers to elucidate mass transport losses. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.1-06-22
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