Benchmarking high surface area electrocatalysts in a gas diffusion electrode: measurement of oxygen reduction activities under realistic conditions

Abstract

In this work, we introduce the application of gas diffusion electrodes (GDE) for benchmarking the electrocatalytic performance of high surface area fuel cell catalysts.

3D Carbon Materials for Efficient Oxygen and Hydrogen Electrocatalysis

“…To fill the gap between the lab scale R(R)DE test and the real device test, gas diffusion electrode (GDE) set up could be used to evaluate the electrocatalytic performance of 3D carbons. 3D freestanding films and aerogels/hydrogels could be integrated to the floating electrodes and tested in freestanding configuration . In freestanding GDE or floating electrode set up, the transfer of reactants through gas phase will be much faster that the R(R)DE set up, and so the convection and reactant transport‐related issues will be less, meaning that the artifacts caused to the data obtained in a freestanding test configuration will be minimum.…”

Active‐Phase Formation and Stability of Gd/Pt(111) Electrocatalysts for Oxygen Reduction: An In Situ Grazing Incidence X‐Ray Diffraction Study

“…Nonetheless, some novel concepts of nanocatalysts such as Pt‐based nanowires and nanoframes achieve outstanding activity and high stability during short‐term accelerated stability tests. Nevertheless, for novel catalysts, it has been challenging to achieve the full enhancement exhibited in rotating disk electrode (RDE) measurements, when tested in fuel cells …”

Structure‐Sensitivity and Electrolyte Effects in CO2 Electroreduction: From Model Studies to Applications

“…With the aim to integrate CO 2 conversion systems in the market, the new devices should be able to operate at long‐term and hold considerable high current densities. Gas‐diffusion electrodes (GDEs) are promising alternatives to traditional H‐cell set‐ups . GDEs overcome the CO 2 mass transport limitation by directly supplying CO 2 to the surface electrode through the gas phase (Figure A).…”

“…Here, the complexity of the system increases to include the tuning of the electrolyte composition, the function of ad‐layer structures and the performance of bi‐metallic alloys and shaped nanoparticles. Finally, we discuss how we could build upon this knowledge to identify future research directions, such as the rational design and characterisation of new, advanced electrocatalysts and catalytic configurations, including solutions that aim at closing the gap between laboratory‐based testing setups and industrially‐relevant devices …”

“…Finally, we discuss how we could build upon this knowledge to identify future research directions, such as the rational design and characterisation of new, advanced electrocatalysts and catalytic configurations, includ-ing solutions that aim at closing the gap between laboratorybased testing setups and industrially-relevant devices. [24,26,[43][44][45][46]…”