method for screening HER/OER electrocatalysts using fully immersed electrodes covered with electrocatalyst. Optimized for usage in alkaline solutions with high loading of electrocatalysts up to 4…
AWST - Technology: Low Temperature Electrolysis (LTE)
A procedure for measuring the hydroxide conductivity of an anion exchange membrane (AEM). A four-electrode In-plane conductivity is measured as a function of relative humidity (RH). The SOP was…
A procedure for the measurement of gas permeability of an anion exchange membrane (AEM). During the course of the electrochemical reaction, low gas permeation of hydrogen and oxygen through the…
This SOP describes experimental methods for characterizing the chemical and mechanical stability of anion exchange membranes (AEMs) exposed to oxygen saturated concentrated alkaline aqueous…
A procedure for ex-situ evaluation of chemical (alkaline) stability of anion exchange membranes (AEM). The IEC and ionic conductivity of an AEM is measured before and after being heated (typically…
Defines a standard set of definitions, metrics, units, and conventions for low temperature electrolysis (LTE). The goal is to ensure that the literature is consistent from research group to…
Ex-situ measurement of the compressibility of Gas Diffusion Layer (GDL) materials for use as electrode materials in applications such as fuel cells, electrolyzers, and batteries. The SOP was…
A procedure for measuring the ion exchange capacity (IEC) of an anion exchange membrane (AEM). This is done via a titration method (automated or manual). The SOP was prepared by Yushan Yan,…
A procedure for measuring the ion exchange capacity (IEC) of a proton exchange membrane (PEM). The SOP was prepared by Kelly M. Meek.
A procedure for measuring the electrical conductivity of PGM-free OER catalyst powders to allow comparison of one material to another. This standard two-point conductivity protocol is applicable…
A procedure for measuring the thermal degradation of proton exchange membranes (PEMs). This is done by thermal gravimetric analysis (TGA) on a dry membrane in SO3H form. The SOP was prepared by…
This procedure is intended to provide guidance and best practices for diagnosing component failure in an operated electrolyzer cell for both PEM and AEM systems. Instructions for disassembling…
The purpose of this procedure is to determine the electrical bulk resistance of the porous transport layer (PTL) as well as the pore size distribution (PSD), mean flow pore diameter, and water…
A standardized procedure for rotating disk electrode (RDE) experiments for the ex-situ characterization of oxygen evolution reaction (OER) catalysts for PEM water electrolyzers. This protocol…
A procedure to determine the percent of water content of membrane. The SOP was prepared by Chris Capuano.