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. 2021 Apr 12;118(16):e2023164118. doi: 10.1073/pnas.2023164118

Fig. 3.

Fig. 3.

Characterization of materials evolution of the discharge process. (A) Raman spectra of GO and rGO before and after discharge. (B) K+ ion concentration in GO measured by ICP indicates cation transportation to GO during discharge. (C) XRD of GO and rGO suggests an interlayer spacing change.