fig11

From: Heterogenized homogeneous catalysts for photoelectrochemical carbon dioxide reduction: a path toward ideal hybrid systems

Figure 11. Preparation and characterization of Mn catalyst immobilized SiO_x-porSi^[126]. (A) Scheme of immobilizing Mn catalyst onto SiO_x-porSi using thermal oxidation; (B) FTIR spectra showing the conversion of SiO_x-porSi to Mn catalyst immobilized on SiO_x-porSi; (C and D) XPS spectra of intact and powdered samples of Mn catalyst immobilized on SiO_x-porSi in the Mn 2p and Si 2p region; (E) Cross-sectional SEM image and EDS mapping for Si and O of Mn catalyst immobilized on SiO_x-porSi. Reprinted with permission from Ref.^[126]. Copyright © 2025, Elsevier. FTIR: Fourier transform infrared; XPS: X-ray photoelectron spectroscopy; SEM: scanning electron microscopy; EDS: energy-dispersive X-ray spectroscopy.