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. 2024 Sep 3;11(40):2407473. doi: 10.1002/advs.202407473

Figure 2.

Figure 2

XPS spectra of Ni3N and VOx−Ni3N: Ni 2p a), N 1s (b). c) V 2p XPS spectrum of VOx−Ni3N and O 1s spectra of Ni3N and VOx–Ni3N (d).