Fig. 7: Extended synthesis of 4H/fcc Au@Ag–Cu BBNs. | Nature Communications

Fig. 7: Extended synthesis of 4H/fcc Au@Ag–Cu BBNs.

From: Unconventional phase metal heteronanostructures with tunable exposed interface for efficient tandem nitrate electroreduction to ammonia

Fig. 7: Extended synthesis of 4H/fcc Au@Ag–Cu BBNs.

a Schematic illustration of the synthesis of 4H/fcc Au@Ag−Cu BBNs. TEM image (b), HAADF-STEM image, and the corresponding EDS elemental mappings (c) of 4H/fcc Au@Ag CSNs. TEM image (d), HAADF-STEM image, and corresponding EDS elemental mappings (e) of 4H/fcc Au@Ag–Cu BBNs. f Spherical aberration-corrected atomic-resolution HAADF-STEM image of a representative Au–Ag–Cu interface marked in (e). g Zoom-in atomic-resolution HAADF-STEM image and the corresponding atomic-resolution EDS elemental mappings of the Au–Ag–Cu interface marked in (f).

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