Publications by authors named "Ervin Tal-Gutelmacher"
Article Synopsis
- - AEMWE, a method for producing hydrogen, merges benefits from both proton and alkaline water electrolysis, focusing on creating better membranes that conduct hydroxide ions and resist gas permeation while being durable.
- - Researchers developed reinforced anion exchange membranes (AEMs) using poly[2,2'-(p-oxydiphenylene)-5,5'-benzimidazole] (PBIO) fibers, enhancing membrane properties through strong interactions and expansion of the fibers within the membrane.
- - The PBIO-reinforced membranes resulted in reduced hydrogen crossover and improved tensile strength, maintaining hydroxide conductivity, and performed effectively in a single AEMWE cell setup over a 260-hour test, achieving 2.06 V
Production of hydrocarbon-based, alkaline exchange, membrane-electrode assemblies (MEA's) for fuel cells and electrolyzers is examined via catalyst-coated membrane (CCM) and gas-diffusion electrode (GDE) fabrication routes. The inability effectively to hot-press hydrocarbon-based ion-exchange polymers (ionomers) risks performance limitations due to poor interfacial contact, especially between GDE and membrane. The addition of an ionomeric interlayer is shown greatly to improve the intimacy of contact between GDE and membrane, as determined by ex situ through-plane MEA impedance measurements, indicated by a strong decrease in the frequency of the high-frequency zero phase angle of the complex impedance, and confirmed in situ with device performance tests.
View Article and Find Full Text PDFHerein, we report a Ru-rich anode catalyst for alkaline exchange membrane fuel cells. The fuel cell with such a RuPdIr/C anode and Ag-based cathode attained a peak power density close to 1 W cm-2 with only 0.2 mg cm-2 anode precious group metal loading, reaching the highest mass activity reported for this technology.
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