The work is devoted to revealing the influence of the synthesis method, namely the nature of the template, on the catalytic properties of the supported Ni/CeSnO systems in dry reforming of methane (DRM) in a flow system with a fixed catalyst bed. A comparison of the characteristics of catalysts obtained using different templates (ionic – cetyltrimethylammonium bromide (CTAB), non-ionic polymer Pluronic-123 (P123), biotemplate – pine sawdust) and containing cerium and tin in a molar ratio of Ce : Sn = 9:1 was carried out. The mass content of nickel was 3%. The catalysts were characterized by temperature-programmed reduction with hydrogen, X-ray diffraction, X-ray photoelectron spectroscopy, scanning and transmission electron microscopy with energy-dispersive X-ray analysis, and magnetometry. The systems obtained in the presence of the biotemplate and P123 were active in CDRM. The highest values of steady-state conversion of methane (11%) and carbon dioxide (29%) were provided by the Ni/CeO–SnO–P123 catalyst. Analysis of the results of physicochemical methods showed that the Ni/CeO–SnO–P123 sample has the most uniform distribution and increased dispersion of nickel particles. It was found that the use of the P123 polymer template contributes to the formation of a greater number of interaction centers of nickel with the tin-containing oxide phase in the Ni/CeSnO–P123. The nature of the template significantly affects the structural state of the active component and, as a consequence, the catalytic characteristics in DRM.
I. Yu. Kaplin (Wed,) studied this question.