Figure 5 | Scientific Reports

Figure 5

From: Mesoporous Platinum Prepared by Electrodeposition for Ultralow Loading Proton Exchange Membrane Fuel Cells

Figure 5

Polarization profiles for proton exchange membrane fuel cells (PEMFCs) prepared with catalysts layers containing either the mesoporous Pt or commercially available Pt NPs. (a) Polarization profiles and power curves for the mesoporous Pt or Pt NPs in the cathode catalyst layers after normalization against the active surface area of the fuel cell. (b) The same polarization profiles in (a) after normalization against the mass of Pt in the cathode CL as determined by X-ray fluorescence spectroscopy (XRF).

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