Simulation analysis reveals that oxidized graphene oxide promotes proton transfer in water, suggesting new applications in fuel cells.
Understanding proton transfer at the aqueous graphene oxide (GO) interface is essential for developing and designing GO-based proton exchange membranes for fuel cells. By comparing GO sheets with two different oxidation levels using deep potential molecular dynamics (DPMD) simulations, we find that oxidized GO promotes interfacial proton release while reduced GO adsorbs protons.
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Azom et al. (2025) studied this question.
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