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. 2020 May 15;11:2409. doi: 10.1038/s41467-020-16342-1

Fig. 1. Results of SSITKA-FTIR experiment.

Fig. 1

a Normalized isotopic transient response curves following the switch from 12CO2/H2 to 13CO2/H2 mixture with a total flow of 25 cm3 min−1, H2/CO2 molar ratio of 3 at 533 K and 15 bar during the reaction over CZA catalyst. b Time-resolved in situ FTIR difference spectra of surface species formed during switch from 12CO2/H2 to 13CO2/H2 (red spectra) and 13CO2/H2 to 12CO2/H2 (blue spectra) mixture at 533 K and 15 bar during the reaction over CZA catalyst. c Comparison of logarithmic transient responses of methanol, carbon monoxide and formate species from SSITKA-FTIR over CZA.