Fig. 4: MoSx-induced electron-deficient Auδ+ formation and mechanism. | Nature Communications

Fig. 4: MoSx-induced electron-deficient Auδ+ formation and mechanism.

From: Enhancing photocatalytic H2O2 production with Au co-catalysts through electronic structure modification

Fig. 4

a, b Calculated average potential profiles of MoSx and Au. c The local charge density difference of MoSx-Au, where the light yellow and cyan areas represent electron accumulation and depletion, respectively. d Planar-averaged electron density difference ∆ρ(z) in MoSx-Au. e The charge density distributions of MoSx, MoSx-Au, and Au. f High-resolution XPS spectra of Au 4f in the TiO2/Au and TiO2/MoSx-Au. g Schematic illustration of the formation of electron-deficient Auδ+ sites in the MoSx-Au cocatalyst.

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