Fig. 6: ATR-IRRAS in Otto configuration spectra focusing on the extent of CO2 solubilization.
From: Local CO2 reservoir layer promotes rapid and selective electrochemical CO2 reduction

CO2 solubilization in the presence of a UiO-66 membrane and b UiO-66-CN membrane. c Zoomed in ATR-IRRAS spectrum of UiO-66-CN depicting the changes in the peak intensity of BA-CN along with CO2 concentration change. The effect of increasing and decreasing CO2 concentration was studied by purging CO2 and Ar in cycles in the aqueous solution. d Variation of the CO2 solubilization per Zr6-oxo nodes and increase in local CO2 concentration because of UiO-66-B-CN membrane during CO2 and Ar purge cycles.