Direct observation of the local microenvironment in inhomogeneous CO<sub>2</sub> reduction gas diffusion electrodes <i>via</i> versatile pOH imaging
Annette Böhme, Justin C. Bui, Aidan Q. Fenwick, Rohit Bhide, Cassidy N. Feltenberger, Alexandra J. Welch, Alex J. King, Alexis T. Bell, Adam Z. Weber, Shane Ardo, Harry A. Atwater
Abstract
We demonstrate pOH imaging with confocal microscopy to probe the microenvironment of an operating CO 2 reduction gas diffusion electrode. We find that the micrometer-scale morphology plays an important role in defining the CO 2 reduction performance.
Topics & Concepts
ElectrodeDiffusionGaseous diffusionReduction (mathematics)Materials scienceConfocalMicrometerMicroscopyDirect imagingNanotechnologyChemistryOpticsPhysicsPhysical chemistryMathematicsThermodynamicsGeometryCO2 Reduction Techniques and CatalystsAdvanced battery technologies researchElectrochemical Analysis and Applications