Fig. 3 | Nature Communications

Fig. 3

From: Boosting hot electron flux and catalytic activity at metal–oxide interfaces of PtCo bimetallic nanoparticles

Fig. 3

Hot electron detection and catalytic activity on PtCo bimetallic NPs. a Temperature dependence of the current from the Au/TiO2 nanodiodes with Pt3Co1 NPs measured in the H2 + O2 gas mixture and in pure O2. b Chemicurrents associated with the H2 oxidation reaction measured on the Au/TiO2 nanodiodes at different temperatures with Pt x Co y NPs of different compositions; the data were normalized based on the total NP surface area. c Catalytic activity (i.e., TOF) for H2 oxidation on a set of Pt x Co y NPs with different compositions. d Comparison of both the chemicurrent and TOF as a function of the composition of the PtCo bimetallic NPs at 110 °C. e Plot of the chemicurrent yield as a function of the fraction of Co during H2 oxidation at different temperatures

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