Fig. 2 | Nature Communications

Fig. 2

From: Atomically ordered non-precious Co3Ta intermetallic nanoparticles as high-performance catalysts for hydrazine electrooxidation

Fig. 2

Atomic structural characterization and X-ray absorption fine structure spectrum measurement of Co3Ta intermetallic nanoparticles. a Atomically resolved HAADF-STEM image of Co3Ta intermetallic NPs. b The corresponding FFT of (a). c The simulated diffraction pattern from the [111] zone axis in (a). d Atomic HAADF-STEM image. e FFT pattern and corresponding simulated diffraction pattern (f) from the [211] zone axis in (d). g The absorption pattern comparisons at the Co K-edge of the experimental Co3Ta nanoparticles (Co3Ta-Exp), calculated Co3Ta nanoparticles (Co3Ta-Cal), Co foil, CoO, and Co3O4. h The absorption pattern comparisons at the Ta L3-edge of the Co3Ta-Exp, Co3Ta-Cal, Ta powder, and Ta2O5

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