Mechanistic Insights Into Proton and Oxygen Transport Through Ultrathin Amorphous Al2O3 and Al2O3‐SiO2 Electrocatalyst Overlayers (Adv. Mater. Interfaces 13/2025)
Source abstract
Abstract
Ultrathin Oxide Membrane Ultrathin (2.5 – 10 nm) amorphous Al2O3 electrode coatings suppress electrochemical O2 reduction while allowing slow proton transport. Through IR reflection-absorption and electrochemical impedance spectroscopy, in article 2400846, Georgios Katsoukis and co-workers determine proton diffusion coefficients and reveal cathodic restructuring that generates new proton transport pathways. Benchmarking against aluminosilicate highlights essential trade-offs in selectivity, permeability, and coating thickness.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fuel Cells and Related Materials · Electrocatalysts for Energy Conversion · Conducting polymers and applications
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Affiliations
Department of Chemical Engineering MESA+ Institute for Nanotechnology Faculty of Science and Technology University of Twente Drienerlolaan 5 Enschede 7522 NB The Netherlands
Department of Nano Electronic Materials MESA+ Institute for Nanotechnology Faculty of Science and Technology University of Twente Drienerlolaan 5 Enschede 7522 NB The Netherlands
References
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