Fig. 3: In situ Raman spectra and the corresponding HER performance at Ru surfaces in different valence states. | Nature Communications

Fig. 3: In situ Raman spectra and the corresponding HER performance at Ru surfaces in different valence states.

From: Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction

Fig. 3: In situ Raman spectra and the corresponding HER performance at Ru surfaces in different valence states.The alternative text for this image may have been generated using AI.

In situ Raman spectra of the alkaline HER at 55 nm Au@2.5 nm Ru surfaces in 0.1 M NaOH after holding the potential (a) at −0.95 V for reduction for 30 mins, and (b) at +0.95 V for oxidation for 20 mins. c Polarization curves of the alkaline HER at 55 nm Au@2.5 nm Ru surfaces in different valence states in 0.1 M NaOH (Ar-saturated) with iR correction, 5 mV/s scanning rate, and 1600 r.p.m. d Corresponding Tafel plots of the HER polarization curves in (c).

Back to article page