Fig. 5: Mechanism of H2O2 photosynthesis on CoOx-BCN-FeOOH. | Nature Communications

Fig. 5: Mechanism of H2O2 photosynthesis on CoOx-BCN-FeOOH.

From: Photocatalytic H2O2 production over boron-doped g-C3N4 containing coordinatively unsaturated FeOOH sites and CoOx clusters

Fig. 5: Mechanism of H2O2 photosynthesis on CoOx-BCN-FeOOH.

a–c In situ DRIFTS of O2 adsorption over BCN and CoOx-BCN-FeOOH. d-e Insitu DRIFTS of BCN and CoOx-BCN-FeOOH under light irradiation. f Relative peak intensity of H2O2 production in different samples. g–i Top and side views of the structure with different charge densities for O2 adsorption on BCN, BCN-FeOOH and CoOx-BCN-FeOOH. Eads and Δq are the total adsorption energy of O2 and the charge transfer on O2, respectively. Yellow indicates electron accumulation, and light blue indicates depletion. j Free energy diagrams for 2e− ORR processes on BCN, BCN-FeOOH and CoOx-BCN-FeOOH with optimized configurations for each step, where the asterisk (*) denotes the active site of the catalyst. k Schematic of the charge transfer and redox reactions involved in CoOx-BCN-FeOOH. Source data are provided as a Source Data file.

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