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. 2024 Mar 21;16(13):16029–16039. doi: 10.1021/acsami.3c16038

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© 2024 The Authors. Published by American Chemical Society

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(a) Voltage profile showing the ex-situ FT-IR spectra sampling points. (b) Ex-situ FT-IR spectra of electrodes in different states of charge: pristine electrode submerged in the electrolyte (violet), discharged to 2.6 V (green), discharged to 1.65 V (blue), charged to 2.8 V (red), and charged to 3.8 V (brown). (c) Proposed redox mechanism of dimer OTQC in a lithium battery assuming complete reduction of pyrazine and quinone groups. The redox mechanism of the trimer OTQC is analogous to the dimer.