Fig. 2. Superior activity and stability of Pd, Ru–Mo2−xOHy.
a LSV polarization curves of Pt, MoS2, Ru–MoS2, Pd–MoS2 and Pd, Ru–MoS2−xOHy in 0.5 M H2SO4. (with iR correction). b OH content as a function of Pd content in Pd, Ru–MoS2−xOHy c Current density achieved at η = 140 mV as a function of Pd content in Pd, Ru–MoS2−xOHy, Ru–MoS2, and Pd–MoS2. d Tafel plots derived from the results given in a. e LSV polarization curves of Pt, MoS2, Ru–MoS2, Pd–MoS2 and Pd, Ru–MoS2−xOHy. (with iR correction) in 1 M KOH. f Tafel plots derived from the results given in e.