Research / 2019 / Article / Fig 3

Research Article

Synthesis of PdSx-Mediated Polydymite Heteronanorods and Their Long-Range Activation for Enhanced Water Electroreduction

Figure 3

Electronic structure modulation in PdSx- heteronanorods. (a) Ni 2p XPS spectra of -Ni3S4 and pure Ni3S4, showing a decrease of ~0.96 eV after coupling Ni3S4 with . (b) Ni K-edge XANES spectra of -Ni3S4, Ni3S4, and Ni foil reference. (c) EXAFS Fourier-transformed k3-weighted χ(k) function spectra of -Ni3S4, Ni3S4 and Ni foil reference. (d) S K-edge XANES spectra of -Ni3S4, pure Ni3S4, and . (e) EELS spectra of -Ni3S4 and Ni3S4 at Ni K-edge. Insets show the representative positions of EELS acquisition. Scale bars, 10 nm. (f) Ultraviolet photoelectron spectra of -Ni3S4, pure Ni3S4, and .