Fig. 6: In situ IR spectra of Cu/UiO-66-a exposed to CO2 and H2. | Nature Communications

Fig. 6: In situ IR spectra of Cu/UiO-66-a exposed to CO2 and H2.

From: Copper-zirconia interfaces in UiO-66 enable selective catalytic hydrogenation of CO2 to methanol

Fig. 6

We used a CO2/H2 mol ratio of 1:3 from 1 to 22 bar at 200 °C. a Range of 3200–2600 cm−1 showing the formation of methoxy groups; b range of 2200–1950 cm−1 showing CO species adsorbed on various types of Cu sites; c and range of 1800–1600 cm−1 showing the formation of bicarbonate/carbonate species. The colors of the lines match the color of the conditions described in the insets.

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