Fig. 3: Charge separation and migration.
From: Selective oxidation of methane to C2+ products over Au-CeO2 by photon-phonon co-driven catalysis
a PIA spectra of CeO2 in Ar, air and methane; b PIA spectra of CeO2 in Ar, Au-CeO2-300 in Ar and Au-CeO2-300 in methane; c PL spectra and (d) OCVD plots of CeO2 and Au-CeO2-300.
