Extended Data Fig. 8: Pt3Ce nanoparticles with an L12 superlattice structure supported on mz-deGa.
From: Rare-earth–platinum alloy nanoparticles in mesoporous zeolite for catalysis
a, b, Low-magnification HAADF-STEM images showing uniformly sized metal nanoparticles dispersed on the zeolite. c, EDS spectrum taken from the red box in b, indicating the presence of both Pt and Ce in the same particle. d, g, AR-HAADF-STEM image of the metal nanoparticle, showing the Pt3Ce ordered alloy structure with the L12 superlattice. e, h, FFT images from the HAADF-STEM image of d and g, respectively. The L12 superlattice reflection from the intermetallic compound structure is indicated by the yellow arrows in e and h. f, i, Intensity profiles taken along the light-blue boxes in d and g, respectively. The intensity profiles in f and i show that Pt and Pt + Ce atomic columns are alternating.
