fig4
![A novel structure Ti/Fe<sub>2</sub>O<sub>3</sub>/Cu<sub>2</sub>S/Co(OH)<sub>x</sub> enhances the photoelectrochemical water splitting performance of iron oxide](https://image.oaes.cc/7beb1c46-18bf-45fd-92f9-d78ee9316ee2/cs3068.fig.4.jpg)
Figure 4. XPS spectra of Ti/Fe2O3, Ti/Fe2O3/Cu2S, and Ti/Fe2O3/Cu2S/Co(OH)x photoanodes. (A) the survey spectra; (B) Fe 2p; (C) O 1s; (D) Cu 2p; (E) S 2p; and (F) Co 2p. XPS: X-ray photoelectron spectroscopy.
Figure 4. XPS spectra of Ti/Fe2O3, Ti/Fe2O3/Cu2S, and Ti/Fe2O3/Cu2S/Co(OH)x photoanodes. (A) the survey spectra; (B) Fe 2p; (C) O 1s; (D) Cu 2p; (E) S 2p; and (F) Co 2p. XPS: X-ray photoelectron spectroscopy.
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