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, , , , , , , , , and ."Toward a Comprehensive Understanding of Cation Effects in Proton Exchange Membrane Fuel Cells."ACS Applied Materials & Interfaces
14.31 (2022) 35555-35568. DOI
, , , and ."Influence of Mesoscale Interactions on Proton, Water, and Electrokinetic Transport in Solvent-Filled Membranes: Theory and Simulation."Langmuir
38.34 (2022) 10362-10374. DOI
Membrane Testing System and AC Impedance for Conductivity with Environmental Control
Description
Membrane Testing System and AC Impedance & DC with Environmental Control (RH, temperature) for measuring membrane conductivity in the plane (4-probe) and thickness (between GDE/electrodes)
Technique
Component/Material
Mode
Mechanical Testing and Dynamic Mechanical Analysis with Environmental Chamber
Description
Compressive-Tensile testing of membranes to determine their stress-strain response and Dynamic Mechanical Analysis (DMA) with environmental control to monitor thermal-mechanical response of membranes (stiffness, storage and loss moduli, glass transition, relaxation)
Technique
Laboratory
Component/Material
Mode
Spectrocopic Ellipsometry for Thin Film Expansion and Swelling with RH
Description
Determine swelling of nanometer-thick ionomer thin films (10-200 nm) on supports to mimic the hydration response of electrode/catalyst ionomers in controlled environment
Technique
Laboratory
Component/Material
Mode
Small/Wide-Angle X-ray scattering (SAXS/WAXS) in-situ for nanostructure and crystallinity
Description
morphological characterization of ionomer membranes using transmission small- and wide-angle X-ray scattering (SAXS/WAXS) in situ, with capabilities to probe nanostructural and crystalline features in dry and hydrated conditions as a function of temperature (30-100% RH in ambient. from 25°C to 90°C in liquid, and up to 200°C for dry environment)
Technique
Laboratory
Mode