Fig. 4: Proton transport and activation energy.
From: Green synthesis of olefin-linked covalent organic frameworks for hydrogen fuel cell applications
a Nyquist plots of NKCOF-10 measured under 90% RH at different temperatures. b Protonation of the pyrazine moieties with H3PO4. c Nyquist plots of H3PO4@NKCOF-10 under 90% RH at different temperatures. d Arrhenius plots for NKCOF-10 (blue) and H3PO4@NKCOF-10 (red).
