Fig. 8 | Communications Chemistry

Fig. 8

From: Cobalt doping of tin disulfide/reduced graphene oxide nanocomposites for enhanced pseudocapacitive sodium-ion storage

Fig. 8

Stability study. a–c TEM images of Sn0.9Co0.1Sx/RGO after cycling at 1 A g−1 for 1500 cycles. The scale bars in a–c) represent 20 nm, 10 nm, and 5 nm, respectively. The structural integrity of the RGO has been maintained. Sn0.9Co0.1Sx/RGO loses the clear boundaries among nanoparticle structures and the d001 spacing of Sn0.9Co0.1Sx/RGO is slightly enlarged to 7 Å because of the repeated Na alloying and dealloying

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