Fig. 5: Operando Raman characterizations in a flow cell. | Nature Communications

Fig. 5: Operando Raman characterizations in a flow cell.

From: Cu supraparticles with enhanced mass transfer and abundant C-C coupling sites achieving ampere-level CO2-to-C2+ electrosynthesis

Fig. 5

a Schematic illustration of operando Raman tests for probing the reaction intermediates and interfacial sites. Raman spectra collected at −0.6 V vs. RHE in 1 M KOH (pH = 13.5) on b SP-Cu2O, c SP-Cu and d NP-Cu. e, f Continues Raman spectra collected at different applied potentials on SP-Cu2O. g In situ FTIR spectra in CO2-saturated 0.1 M KHCO3 (pH = 6.8) at different applied potentials on SP-Cu2O. b–g Potentials are not iR corrected. Source data are provided as a Source Data file.

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