Fig. 6: Electrochemical kinetics analysis. | Nature Communications

Fig. 6: Electrochemical kinetics analysis.

From: Strain-regulated Gibbs free energy enables reversible redox chemistry of chalcogenides for sodium ion batteries

Fig. 6

a EIS spectra of TS-MoSe2 at different temperatures after 5 cycles. The inset is an equivalent circuit used to simulate EIS spectra. b σ values at different temperatures calculated from EIS curves. c Arrhenius plots of ln (T/Rct) vs. 1/T in TS-MoSe2 and MoSe2 electrodes. d Bode plots of TS-MoSe2 and MoSe2 electrodes. e Tafel plots of TS-MoSe2 and MoSe2 electrodes during the anodic scan. f The sodium ion diffusion coefficient vs. De/Intercalation state of TS-MoSe2 and MoSe2 electrodes during the discharging/charging process after 5 cycles. g The adsorption sites of sodium ions and the corresponding adsorption energies. h The diffusion pathway of sodium ions and the corresponding diffusion energy barrier.

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