Fig. 7. UV-visible absorption spectra of the NiONiOǀRBG-174RBG-174ǀCoC11P electrode after subtraction of the spectrum of the NiOǀCoC11P electrode (red line), of the NiOǀRBG-174 electrode after subtraction of the spectrum of the pristine NiO electrode (orange line; left scale) and of a solution of RBG-174tBu in CH2Cl2 (purple dotted line; right scale).
