Fig. 1: Structural characterizations of SP-Fe3O4-C. | Nature Communications

Fig. 1: Structural characterizations of SP-Fe3O4-C.

From: Fe3O4-doped mesoporous carbon cathode with a plumber’s nightmare structure for high-performance Li-S batteries

Fig. 1

a Schematic preparation of SP-Fe3O4-C with a plumber’s nightmare (bicontinuous) structure. b SEM image of an SP-Fe3O4-C cubosome along the (100) direction. c SEM image of a fractured SP-Fe3O4-C cubosome. The inset shows a high-magnification SEM image of a local area. d SAXS pattern of the SP-Fe3O4-C powder. e TEM image of an SP-Fe3O4-C cubosome and the size distribution curve for the Fe3O4 particles (inset). f HRTEM image of a Fe3O4 nanoparticle in SP-Fe3O4-C. The inset presents a high-magnification SEM image of a local area. g Nitrogen adsorption-desorption isotherm and pore size distribution of SP-Fe3O4-C (inset).

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