fig4

NiS nanoparticle-MoS<sub>2</sub> nanosheet core-shell spheres: PVP-assisted synthesis and efficient electrocatalyst for hydrogen evolution reaction

Figure 4. High-resolution XPS spectra of (A) Mo 3d, (B) Ni 2p, (C) S 2p, and (D) C 1s for the NiS@MoS2/NC50, MoS2/NC and NiS/NC complexes, respectively.

Energy Materials
ISSN 2770-5900 (Online)
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