Fig. 4: Structural characterizations of Ni–CaO DFMs.
From: Synergistic promotions between CO2 capture and in-situ conversion on Ni-CaO composite catalyst
a Micrometer-scale morphology of Ni–CaO-5 (scale bar = 500 nm). b XRD patterns of Ni–CaO-2.5, Ni–CaO-5, Ni–CaO-10. c TEM image (scale bar = 200 nm) and size distribution of Ni nanoparticles at Ni–CaO-5. d STEM image of Ni–CaO-5 (scale bar = 100 nm). e Energy-dispersive X-ray elemental mapping images of Ni–CaO-5. f High-resolution TEM of Ni–CaO-5 (scale bar = 5 nm).
