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Influence of PTFE on water transport in gas diffusion layer of polymer electrolyte membrane fuel cell

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Figure

Figure 1.  The single cell test device with parallel straight flow filed.
Figure 2.  The performance of MEAs with various PTFE loading GDLs at 0.4 mg·cm-2 Pt loading cathode testing at 80 °C, 250kPaabs, 70%RH and cathode gas using air with high flow rates of 1000 nccm H2 on the anode and 3000 nccm air on cathode
Figure 3.  The SEM images of the different PTFE loading in GDLs (a): 0 wt. %; (b):10 wt
Figure 4. The change of oxygen transport resistance RT with various PTFE load on cathode GDL at different operating temperatures (evaluated at low oxygen concentrations as 1%, 2%, 3% and 4%)
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