Sustainion® membranes and related ionomers by Dioxide Materials offer Researchers new possibilities.

Sustainion®, an alkaline stable imidazole-based anion exchange membrane, and related ionomers by Dioxide Materials are enabling the advancement of new and improved electrochemical processes to operate at commercially viable operating voltages, current efficiencies, and current densities. Learn how they are being used by researcher across the world.

In Molecular electrocatalysts can mediate fast, selective CO2 reduction in a flow cell, Curt Berlinguette and coworkers found that when they deposited a cobalt phthalocyanine catalyst on a GDL, and mounted it in a electrolyzer with a Sustainion® membrane, the electrolyzer showed industrially relevant current and stability.

In ZIF 67 Based Highly Active Electrocatalysts as Oxygen Electrodes in Water Electrolyzer,  Shaun Alia and colleagues from NREL found that ZIF 67 showed better initial performance in a water electrolyzer  than even Iridium.

In Achieving highly efficient CO2 to CO electroreduction exceeding 300 mA cm−2 with single-atom nickel electrocatalysts,  Hui-Yun Jeong and colleagues from Seoul National University found that they could create a three dimensional electrode that nearly doubled the current produced in a CO2 electrolyzer.

The article featured in the Journal of CO2 Utilization, “Electrochemical CO2 reduction using alkaline membrane electrode assembly on various metal electrodes,”  illustrates how researchers at the Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology were able to test CO2 Reduction Reaction (CO2RR) using a membrane electrode assembly that consists of gas diffusion electrode (GDE) and anion exchange membrane (AEM).  After testing various MEA’s, the team reported that Sustainion®, which is an imidazolium-functionalized anion exchange membrane recently developed by Dioxide Material Inc., showed high performance for the CO2RR with Ag or Sn catalysts in alkaline CO2 electrolysis cells. They stated that the “CO productivity obtained from the alkaline MEA was comparable to the values obtained from thermal reactions such as reverse water-gas shift reactions or dry reforming of methane, unlike the CO2RR performed in liquid-phase reactor.”

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