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DOE OSTI · 2561251

Anion exchange membrane test protocol validation

Ahn, Su Min [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Boudreau, Andrew [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Ekennia, Anthony C. [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Palau, Alexis [National Renewable Energy Laboratory (NREL), Golden, CO (United States)]·Vulpin, Olivia T. [Univ. of Oregon, Eugene, OR (United States)]·Kwak, Minkyoung [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Kim, Yu Seung [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Boettcher, Shannon W. [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)]·Park, Eun Joo [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)]·Roberts, George M. [Nel Hydrogen, Wallingford, CT (United States)]·Perez Bakovic, Sergio I. [Nel Hydrogen, Wallingford, CT (United States)]·Ayers, Katherine E. [Nel Hydrogen, Wallingford, CT (United States)]
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Abstract

This study presents the validation of protocols for measuring ion exchange capacity (IEC) and alkaline stability of anion exchange membranes (AEMs) for low-temperature water electrolysis. While protocols are often tested within individual laboratories, their results across multiple laboratories with varying equipment, environmental conditions, and personnel qualification remain unverified. The validation involved Los Alamos National Laboratory (LANL), National Renewable Energy Laboratory (NREL), and University of Oregon (UO) using the same commercially available AEM to assess reproducibility and reliability of the protocols under diverse conditions. For the IEC protocol, results across laboratories were consistent within ±10% of the NMR-determined reference value. The alkaline stability protocol could pose greater challenges due to factors such as variations in sample collection timing, preservation methods, and analytical techniques, but consistent test results for percentage IEC loss were demonstrated across institutions. These results highlight the reliability and applicability of the protocols, emphasizing the importance of validation to ensure consistency in diverse research environments.

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08 HYDROGEN25 ENERGY STORAGE36 MATERIALS SCIENCEHYDROGENalkaline stabilityanion exchange membranegreen hydrogenion exchange capacitylow-temperature water electrolysismembrane propertyprotocol validationwater splitting

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Ahn, Su Min [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Boudreau, Andrew [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Ekennia, Anthony C. [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Palau, Alexis [National Renewable Energy Laboratory (NREL), Golden, CO (United States)], Vulpin, Olivia T. [Univ. of Oregon, Eugene, OR (United States)], Kwak, Minkyoung [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Kim, Yu Seung [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Boettcher, Shannon W. [Univ. of Oregon, Eugene, OR (United States); University of California, Berkeley, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)], Park, Eun Joo [Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)], Roberts, George M. [Nel Hydrogen, Wallingford, CT (United States)], Perez Bakovic, Sergio I. [Nel Hydrogen, Wallingford, CT (United States)], Ayers, Katherine E. [Nel Hydrogen, Wallingford, CT (United States)]. 2025-04-02. Anion exchange membrane test protocol validation. https://doi.org/10.3389/fenrg.2025.1553134

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