Abstract

Laser-induced breakdown spectroscopy (LIBS) using conditional data analysis was applied to aqueous suspensions of palladium particles in the reformate water of palladium-based proton exchange membrane fuel cells. A significant amount of palladium was found in the water, indicating degradation of the fuel-cell cathode catalytic layers. The palladium particle-size detection limit was found to be about 400 nm. Calibration procedures to quantify the palladium concentration are discussed.

Technique of laser calibration for wavelength-modulation spectroscopy with application to proton exchange membrane fuel cell measurements

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Detection of trace phosphorus in water by plasma amplification laser-induced breakdown spectroscopy

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