Fig. 5: HBE and OHBE. | Nature Communications

Fig. 5: HBE and OHBE.

From: Bimetallic nickel-molybdenum/tungsten nanoalloys for high-efficiency hydrogen oxidation catalysis in alkaline electrolytes

Fig. 5

a UPS spectra of MoNi4, WNi4, and freshly synthesized Ni catalysts. b CO-stripping measurements on MoNi4, WNi4, and freshly synthesized Ni and Pt/C catalysts. Sweep rate: 20 mV s−1. Rotation speed: 1600 r.p.m. The gray curves in b show the second cycle of the measurements. c The experimentally measured exchange current density normalized by ECSA, log(j0), for the HOR in 0.1 M KOH on different catalysts plotted with the calculated H and OH binding energies. d–f Schematic illustration of hydrogen and hydroxyl adsorption on freshly synthesized Ni, Mo(W)Ni4 alloys, and Pt, respectively.

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