Fig. 7. (a) In situ DRIFTS of 2.5 wt% RhFeLi/TiO2 NRs, 2.5 wt% RhFeLi/TiO2 Com and 2.5 wt% RhFeLi/TiO2 NRs-CO under a CO2 + H2 + Ar (CO2 : H2 = 1 : 3) atmosphere at 250 °C. (b) The summed selectivity to CH4 and ethanol as a function of the peak area of hydroxyls normalized by SBET of the samples obtained from 2.5 wt% RhFeLi supported on different TiO2 supports. (c) In situ DRIFTS of 2.5 wt% RhFeLi/TiO2 NRs, 2.5 wt% RhFeLi/TiO2 Com and 2.5 wt% RhFeLi/TiO2 NRs-CO after CH3OH + Ar adsorption followed by H2 adsorption at 250 °C. (d) In situ DRIFTS of 2.5 wt% RhFeLi/TiO2 NRs, 2.5 wt% RhFeLi/TiO2 Com and 2.5 wt% RhFeLi/TiO2 NRs-CO under a CO + H2 + Ar (CO : H2 = 1 : 2) atmosphere at 250 °C.
