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. 2020 Jan 2;10(1):85. doi: 10.3390/nano10010085

Figure 4.

Figure 4

Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM-EDS) characterization of a hematite sample (NV4) prepared by hydrothermal synthesis at 20 bar, embedded in EpoThin-Buehler resin: (a) micrograph by scanning electron microscopy (SEM)collected using Circular Backscatter Detector (CBS); magnification 1200×; scale bar 40 µm; (b) line between hematite and goethite areas; (c) elemental analysis by energy dispersive X-ray spectroscopy (EDS); (d) distribution of O (turquoise) and Fe (yellow) content along the line between hematite and goethite areas from left to right.