Fig. 2: Electrochemical behaviors and electrochemical spectra of [Os] complexes. | Nature Communications

Fig. 2: Electrochemical behaviors and electrochemical spectra of [Os] complexes.

From: Silicon photocathode functionalized with osmium complex catalyst for selective catalytic conversion of CO2 to methane

Fig. 2

a CV curves of 1.0 mM of przpOs and trzpOs in electrolyte of 0.1 M n-Bu4NPF6 acetonitrile solution, in N2 atmosphere, at scan rate of 0.1 V s−1 and without iR correction. The arrows indicate the scanning direction. CV curves of przpOs (b) and trzpOs (c) in N2 and CO2 saturated electrolyte with the addition of 1.0 mM TFA. d Current-time curves of przpOs and trzpOs in N2 and CO2 at −1.4 VNHE, under chopped AM 1.5 G illumination. e Gas products of przpOs and trzpOs in CO2 at −1.4 VNHE determined by GC measurements. In situ UV-vis spectro-electrochemistry of 1.0 mM przpOs (f) and trzpOs (g) in N2 and CO2 saturated electrolyte at different applied potentials. The inset figure shows the proposed catalytic cycles.

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