Spectrocopic Ellipsometry for Thin Film Expansion and Swelling with RH
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
Characterization
Microelectrode system: electro-osmotic coefficient, gas permeability and solubility testing, kinetics
Microelectrode and microcavity electrode setup to evaluate catalyst and membrane materials. Independent control of atmosphere (gas type and RH) at the working and reference electrodes
Mechanical Testing and Dynamic Mechanical Analysis with Environmental Chamber
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)
Membrane Testing System and AC Impedance for Conductivity with Environmental Control
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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)