Protocol for Screening Water Oxidation or Reduction Electrocatalyst Activity in a Three-Electrode Cell for Alkaline Exchange Membrane Electrolysis
Erin B. Creel, Xiang Lyu, Geoff McCool, Ryan J. Ouimet, Alexey Serov
Abstract
Accurate and reproducible screening of the electrocatalytic activity of novel materials for Oxygen Evolution Reaction (OER) and Hydrogen Evolution Reaction (HER) requires establishing an easily adoptable harmonized testing protocol. Herein, we describe a robust, instrumentation-independent testing technique utilizing a three-electrode cell with a fully immersed working electrode. Compared to rotating disk electrode (RDE) techniques, this protocol produces current densities close to those obtained in real electrolyzers and eliminates the usage of the expensive RDE apparatus.
Topics & Concepts
ElectrocatalystElectrolysisElectrodeElectrolysis of waterProtocol (science)Polymer electrolyte membrane electrolysisInstrumentation (computer programming)ChemistryAlkaline water electrolysisClark electrodeChemical engineeringMaterials scienceInorganic chemistryComputer scienceElectrochemistryPhysical chemistryEngineeringElectrolyteMedicineAlternative medicinePathologyOperating systemElectrocatalysts for Energy ConversionAdvanced battery technologies researchFuel Cells and Related Materials