Fig. 1: Electrocatalytic performance of N–CuO towards 1O2 production. | Nature Communications

Fig. 1: Electrocatalytic performance of N–CuO towards 1O2 production.

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

Fig. 1

a Schematic of the molecular oxygen activation pathway of “side-on” and “end-on” adsorption configuration on catalyst surface. b Fluorescence response of SOSG upon treatment with CuO and N–CuO within 240 min (λex = 504 nm and λem = 525 nm). c Excitation and emission spectra of DMA in 10 wt% acetonitrile in H2O upon treatment with N–CuO system. The excitation was recorded from 280 to 420 nm with λem = 425 nm. d HR-MS chromatogram of the typical DMA-O2 from the oxidation of DMA in CuO and N–CuO EC system. e EPR spectra in CuO and N–CuO EC system using TEMP as trapping agents. f Degradation and first-order reaction kinetics of SMX removal in CuO and N–CuO EC system. g Comparison of electrocatalytic performances of metal oxides and the corresponding N-doped metal oxides in the 1O2 production process. Error bars represent the standard deviation from triplicate experiments.

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