Extended Data Fig. 2: Thermocatalytic H2O2 production and mechanism analysis. | Nature Catalysis

Extended Data Fig. 2: Thermocatalytic H2O2 production and mechanism analysis.

From: SnSe nanosheets with Sn vacancies catalyse H2O2 production from water and oxygen at ambient conditions

Extended Data Fig. 2

a, Time-dependent H2O2 production over SnSe NSs under different gas environment at 40˚C. Error bars represent the standard deviations (SD) of three replicate tests. b and c, Isotopic labelling experiments using both H218O and 18O2. The labeled product C7H6O218O was identified by LC-MS, characterized by a difference of charge to mass ratio (m/z) of +2. The LC-MS spectra show both oxidation of labeled water (b) and the reduction of 18O2 (c). d and e, In situ EPR spectra of DMPO-•O2− (d) and DMPO-•OH (e) at various temperatures. f, Quantitative analysis of radical concentrations for Sn0.9Se and SnSe NSs.

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