Hydrogen pumping at full humidification showed a slightly steeper slope of the polarization curve of the MEA assembled with SLG (TT) between 2 NXL membranes compared to the double NXL reference without SLG, with an increasing trend at increasing current densities ( Figure 7 ).
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Applicability of Single-Layer Graphene as a Hydrogen-Blocking Interlayer in Low-Temperature PEMFCs.
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