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Optica Publishing Group
  • Applied Spectroscopy
  • Vol. 65,
  • Issue 6,
  • pp. 642-647
  • (2011)

The Detection of Palladium Particles in Proton Exchange Membrane Fuel-Cell Water by Laser-Induced Breakdown Spectroscopy (LIBS)

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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.

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