Skip to main content
. 2022 Feb 14;13:867. doi: 10.1038/s41467-022-28476-5

Fig. 5. Examination of oxygen vacancies in the copper‒ceria catalysts.

Fig. 5

a In situ Raman under the RWGS reaction conditions for the 15CuCe catalyst; b‒c In situ Raman of the 15CuCe catalyst with H2/CO2 switching under 300 °C and 500 °C, respectively; d‒e The in situ Raman spectra over the 15CuCe catalyst under CO2 flow at 300 °C and the variation of ID/IF2g intensity ratio with time; f‒g The in situ Raman spectra over the 15CuCe catalyst under CO2 flow at 500 °C and the variation of ID/IF2g intensity ratio with time.