Fig. 1: Catalyst preparation strategy and structure characterization. | Nature Communications

Fig. 1: Catalyst preparation strategy and structure characterization.

From: Thermally stable Ni foam-supported inverse CeAlOx/Ni ensemble as an active structured catalyst for CO2 hydrogenation to methane

Fig. 1

a Schematic diagram of the synthesis of CeAlOx/NiO/Ni-foam catalyst; b SEM image of CeAlOx/Ni(OH)2/Ni-foam catalyst; c TEM image of CeAlOx/NiO catalyst scraped from the Ni-foam substrate (inset is the particle size distribution histogram); d Aberration-corrected HAADF-STEM image of scraped CeAlOx/NiO catalyst; e EDS elemental maps of scraped CeAlOx/NiO catalyst, showing the distribution of Ni, Ce and Al; f High-resolution HAADF-STEM image of the 1# area in d; g Raman spectra of the NiO/Ni-foam, Al2O3/NiO/Ni-foam, CeAlOx/NiO/Ni-foam, CeO2 and Al2O3 catalysts; h In situ XPS of Ce 3d and Ni 2p of CeAlOx/NiO/Ni-foam and CeAlOx/Ni/Ni-foam catalysts; i In situ XPS of Al 2p of CeAlOx/NiO/Ni-foam, CeAlOx/Ni/Ni-foam, Al2O3/NiO/Ni-foam and Al2O3/Ni/Ni-foam catalysts.

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