Fig. 5: Operando electrochemical Raman measurements.
From: Tailoring a local acid-like microenvironment for efficient neutral hydrogen evolution
a Operando electrochemical Raman spectra of HxWO3 from OCP to −0.3 VRHE and corresponding normalized intensity of WO–H (b) and O–H (c) signals under different HER potentials. d Operando electrochemical Raman spectra of Ir–HxWO3 from OCP to −0.3 VRHE and corresponding normalized intensity of WO–H (e) and O–H (f) signals under different HER potentials.
