Fig. 5: Cleavage mechanism with fast kinetics of electron transfer from sulfur molecules. | Nature Communications

Fig. 5: Cleavage mechanism with fast kinetics of electron transfer from sulfur molecules.

From: Understanding the charge transfer effects of single atoms for boosting the performance of Na-S batteries

Fig. 5

a The Mn K-edge from ex-situ XANES spectra of the S@Mn1-PNC sample during the discharge process, with the insets showing enlargements of the near-edge absorption energy shifts. b The Ni K-edge from ex-situ XANES spectra of the S@Ni1-PNC sample during the discharge process, with the insets showing enlargements of the near-edge absorption energy shifts. c The energy shifts of S@Mn1-PNC and S@Ni1-PNC during the discharging process with their discharge curves. d The energy shifts of S@Mn1-PNC and S@Ni1-PNC during the charging process with their charge curves. e Schematic illustration of electron transfer caused by change in the electronic structure, where the voltage is determined by the energy gap. f Diagram of S-S orbital energy levels.

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