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. 2022 Mar 17;13:1400. doi: 10.1038/s41467-022-29102-0

Fig. 5. Chemical structure analysis and surface species evolution of Pd-HPP-TiO2.

Fig. 5

a Solid-state 13C CP-MAS NMR spectrum. b Comparison of Pd 3d XPS spectra for three photocatalysts. c Pd K-edge XANES and d Fourier transformed EXAFS spectra of Pd-HPP-TiO2 and references. e Fourier transformed EXAFS spectrum of Pd-HPP-TiO2 and fitting curve. f In situ DRIFTS test of gas adsorption on Pd-HPP-TiO2 in the dark and during the photocatalytic CO2 reduction under UV-visible light irradiation.