Fig. 3: Electrochemical performance for EGOR. | Nature Communications

Fig. 3: Electrochemical performance for EGOR.

From: Scale-up upcycling of waste polyethylene terephthalate plastics to biodegradable polyglycolic acid plastics

Fig. 3

a LSV curves without iR correction obtained at a scan rate of 10 mV s–1 of Pd-CoCr2O4, Pd-Cr2O3, Pd-Co3O4, and Pd in 1 M KOH with 1 M EG. b Bode plots of Pd-CoCr2O4 in 1 M KOH with 1 M EG. c Nyquist plots of Pd-CoCr2O4, Pd-Cr2O3, Pd-Co3O4, and Pd in 1 M KOH with 1 M EG. d I-t curves of Pd-CoCr2O4, Pd-Cr2O3, Pd-Co3O4, and Pd in 1 M KOH with 1 M EG under 0.8 V vs. RHE. e CO stripping experiments of Pd-CoCr2O4, Pd-Cr2O3, Pd-Co3O4, and Pd in 1 M KOH. f 1H NMR spectra of electrolyte before and after long-term electrolysis in H-cell system at 0.8 V vs. RHE. Inset: 13C NMR spectrum of electrolyte after long-term electrolysis in H-cell system at 0.8 V vs. RHE. g The concentrations of EG and GA– during long-term electrolysis in H-cell system at 0.8 V vs. RHE. h Schematic diagram of electrostatic interactions at the interface. i OCP changes of Pd-CoCr2O4, Pd-Cr2O3, Pd-Co3O4, and Pd in 1 M KOH before and after 60 mmol GA was injected.

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