Fig. 4: Proton transfer kinetics. | Nature Nanotechnology

Fig. 4: Proton transfer kinetics.

From: Proton–electron temporal asynchrony on femtosecond timescales enables anti-corrosive low-iridium anodes for PEM electrolysers

Fig. 4: Proton transfer kinetics.

a–f, fs-ECTAS of CeO2–IrO2 under OCP (a) and 1.1 V (b), 1.3 V (c), 1.5 V (d), 1.7 V (e) and 1.9 V (f) potentials in 0.5 M H2SO4. Arrows indicate the characteristic signal peaks assigned to IrO2, Ir6+ and H+ species, respectively. g,h, Transient absorption spectra of CeO2–IrO2 (g) and IrO2 (h) with proton dynamics curves. i, The microscopic proton dynamics of CeO2–IrO2 and IrO2.

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