Fig. 5: Fuel cell of H3PO4@NKCOF-10.
From: Green synthesis of olefin-linked covalent organic frameworks for hydrogen fuel cell applications

a Scheme of the PEMFCs using H3PO4@NKCOF-10, H3PO4@NKCOF-1, and Nafion 212 as solid electrolyte membranes of MEA. b Polarization curves and power density curves obtained at 60 °C and 1.0 atm (H2 and O2) under 100% RH condition.