Fig. 1 | Nature Communications

Fig. 1

From: Two-site H2O2 photo-oxidation on haematite photoanodes

Fig. 1

Photocurrent voltammograms and intensity-modulated photocurrent spectra at varied H2O2 concentrations. a Photocurrent density as a function of the applied potential under white LED illumination (80 mW cm−2) at different H2O2 concentrations as indicated in the legend. b Normalized photocurrent voltammograms obtained by dividing the photocurrent voltammograms in a by the photocurrent measured at [H2O2]= 500 mM, j500. Bottom IMPS spectra correspond to: (i) [H2O2]=0 mM, U= 1.05 VRHE, (ii) [H2O2]=0 mM, U= 1.25 VRHE, (iii) [H2O2]= 5 mM, U= 1.05 VRHE, (iv) [H2O2]= 5 mM, U= 1.25 VRHE, (v) [H2O2]= 500 mM, U= 1.05 VRHE, (vi) [H2O2]= 500 mM, U=1.25 VRhe

Back to article page