Fig. 4: Energy barriers for formation and hydrolysis of charged products. | Nature Communications

Fig. 4: Energy barriers for formation and hydrolysis of charged products.

From: Carbon-halogen bond substitution enables high-utilization four-electron iodine redox in noncorrosive dilute electrolytes

Fig. 4: Energy barriers for formation and hydrolysis of charged products.The alternative text for this image may have been generated using AI.

a Gibbs free energy change (ΔG) for I-/I0/I+ redox processes regulated by IBr and R-CH2-IBr. b Comparison of Ea values for I-/I0 and I0/I+ conversion regulated by IBr and R-CH2-IBr. c Hydrolysis pathways of I+ species (charged products). Red spheres: O atoms; Blue spheres: N atoms; Brown spheres: Br atoms; Purple spheres: I atoms; Gray spheres: C atoms; White spheres: H atoms. Circle: denotes emphasis. d The corresponding energy barriers. e, f In situ UV-vis spectra of electrolytes with ZnBr2 and BrAce during charging/discharging of Zn | |I2 batteries (cycling current: 0.2 A g-1).

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