Fig. 3 | Nature Communications

Fig. 3

From: Size-dependent activity and selectivity of carbon dioxide photocatalytic reduction over platinum nanoparticles

Fig. 3

Electronic properties of xPHTSO. High-resolution Pt 4f XPS spectra of a 1.8PHTSO, b 3.4PHTSO, c 4.3PHTSO, and d 7.0PHTSO. e The kinetics of the characteristic transient absorption band observed at 350 nm in the fs-TA spectra after 310 nm excitation of samples 1.8PHTSO and 4.3PHTSO. The solid lines were the curves fitted by a two exponential. f Transient photocurrent response of xPHTSO (x = 1.8, 3.4, 4.3, and 7.0), where a 300 W Xe lamp is used as the light source and a 0.5 M Na2SO4 solution is used as the electrolyte

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