Fig. 3: Quantitative characterization of the strain of PtNi and Ga-PtNi nanoparticles during potential cycles. | Nature Communications

Fig. 3: Quantitative characterization of the strain of PtNi and Ga-PtNi nanoparticles during potential cycles.

From: Atomic-scale 3D structural dynamics and functional degradation of Pt alloy nanocatalysts during the oxygen reduction reaction

Fig. 3

a Local volumetric strain of surface Pt atoms during potential cycles of PtNi and Ga-PtNi nanoparticles. b, c Strain of Pt as a function of distance from the surface during potential cycles for PtNi (b) and Ga-PtNi (c) nanoparticles. Note that the values and error bars for each cycle corresponding to (a–c) represent the averages and standard deviations obtained from 2 PtNi pristine, 3 Ga-PtNi pristine, 2 Ga-PtNi 4k, 2 Ga-PtNi 8k, and 2 Ga-PtNi 12k samples. We have only one particle for PtNi 12k, and the error bar cannot be defined in the same manner in this case. Source data for dot or line plots in this figure are provided as a Source Data file.

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