Fig. 4: The mechanism for 1O2 production by the electrocatalytic process from N–CuO. | Nature Communications

Fig. 4: The mechanism for 1O2 production by the electrocatalytic process from N–CuO.

From: Pauling-type adsorption of O2 induced electrocatalytic singlet oxygen production on N–CuO for organic pollutants degradation

Fig. 4

a O2-TPD profiles of CuO and N–CuO. b In situ Raman spectra of CuO and N–CuO in EC system with O2-saturated solution. All potentials were referenced to saturated calomel electrode (SCE). c In situ FTIR spectra of 1O2 generation over N–CuO and CuO in EC system with O2-saturated solution. d Fluorescence response of SOSG under different applied potentials in EC system. Error bars represent the standard deviation from triplicate experiments. e EPR spectra for the detection of •OOH/O2•− in the presence of DMPO (50 mmol L−1). f EPR spectra of EC system with different sacrificial agents by using N–CuO.

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