Fig. 5.
Ex-situ TEM images, SAED patterns, XPS spectra of FeSex@C/MB after the first discharge (a–c, g, i) and charge state (d–f, h, j): a, d TEM images, b, e HR-TEM images, c, f SAED patterns, g, h Fe 2p, and i, j K 2p spectra
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