Fig. 4: EPR spectra of the samples.
A The MgO/NC-T catalysts; B The fresh MgO/NC-500 and the treated MgO/NC-500 samples. MgO/NC-500-Nitrobenzene and MgO/NC-500-Ethanol represent the treatment of MgO/NC-500 by nitrobenzene and ethanol.
Fig. 4: EPR spectra of the samples. | Nature Communications
