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FePt icosahedra with magnetic cores and catalytic shells

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Figure 1. Microstructure and distribution of the FePt nanoparticles. (a) Standard bright-field TEM of the nanoparticles on carbon support films show homogenously distributed particles with identical sizes of about 5-6 nm
Figure 3. Exit wave phase image (a), fast Fourier transform (b), and two representative digital dark-field images (c,d) of another FePt nanoparticle
Figure 5. (a) Comparison of experimentally measured (FePt) and simulated (CuPt) shell spacing
Figure 6. EFTEM of FePt nanoparticle. (a) Iron Pre-edge image, (b) Iron Postedge image, (c) Iron mapping, (d,e) image intensity line profiles across the nanoparticle indicated by white arrow in parts a and c of Figure 6, showing smaller particle sizes in t

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