Fig. 2 | Nature Communications

Fig. 2

From: Unconventional CN vacancies suppress iron-leaching in Prussian blue analogue pre-catalyst for boosted oxygen evolution catalysis

Fig. 2

Characterization of VCN-mediated Ni–Fe PBA. a TEM image of PBA-60. Scale bar, 100 nm. Inset shows the corresponding selected-area electron diffraction pattern. Scale bar, 2 nm−1. b HRTEM image of PBA-60. Scale bar, 1 nm. Inset shows the atomic intensity profile along the dotted red line in b. c HAADF image of a typical PBA-60 nanorod. Scale bar, 50 nm. Inset shows the corresponding STEM elemental mappings. Scale bar, 100 nm. d PAS analysis of PBA-0 and PBA-60. e, f Schematic representation of the trapped positrons by VCN-mediated PBA-60

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