Fig. 2: Catalyst characterizations.
From: A practical concept for catalytic carbonylations using carbon dioxide

a STEM-HAADF images, EDXS and FFT/IFFT of fresh 10Cu/SiO2-PHM sample. b XPS spectra of 10Cu@SiO2-PHM, 10Cu@SiO2-CIM, and 10Cu@SiO2-PHM-spent samples. c In situ FTIR spectra of 10Cu@SiO2-PHM and 10Cu@SiO2-CIM catalysts obtained at 400 °C before and after 60 min exposure to CO2/H2 (left) and CO adsorbate spectra measured at room temperature after the in situ experiment (right).