Fig. 8: Origin of HER/OER activities on NiMoOx/NiMoS. | Nature Communications

Fig. 8: Origin of HER/OER activities on NiMoOx/NiMoS.

From: Engineering active sites on hierarchical transition bimetal oxides/sulfides heterostructure array enabling robust overall water splitting

Fig. 8

a Chemisorption models and corresponding Gibbs free energy of H on the interface of Ni3S2/MoS2 and NiMoOx/NiMoS, on the surface of NiOx/Ni3S2 (S) and on the edge of MoOx/MoS2 (Mo). b OH, O, and OOH intermediates adsorption configurations for OER on the interface of (top) Ni3S2/MoS2 and (bottom) NiMoOx/NiMoS. c, d The free energy diagrams for OER on the interface of c Ni3S2/MoS2 and (d) NiMoOx/NiMoS heterostructures. Cyan, yellow, red, green, and gray balls, respectively, represents H, S, O, Mo, and Ni atoms.

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