Fig. 3 | Nature Communications

Fig. 3

From: Atomic cobalt as an efficient electrocatalyst in sulfur cathodes for superior room-temperature sodium-sulfur batteries

Fig. 3

Thermogravimetric analysis, X-ray diffraction, and X-ray photoelectron spectra. a Thermogravimetry (TG) of hollow carbon hosting sulfur (S@HC) and atomic cobalt-decorated hollow carbon sulfur host (S@Con-HC). b X-ray diffraction (XRD) patterns of sulfur (S) powder, S@HC and S@Con-HC. c S 2p region of X-ray photoelectron spectroscopy (XPS) spectra for S@HC (bottom) and S@Con-HC (top). d Co 2p region of XPS spectrum for S@Con-HC

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