One-Step Synthesized Pt-on-NiCo Nanostructures for Oxygen Reduction with High Activity and Long-Term Stability

Figure 1

As-synthesized Pt-on-NiCo nanostructures: (a) TEM image; (b) HETEM image; (c) XRD patterns of (A) Ni₅₀Co₅₀, (B) Pt₅-on-NiCo, (C) Pt₁₂-on-NiCo, (D) Pt₅₃-on-NiCo, and (E) Pt₇₁-on-NiCo nanostructures; (d) In-situ EDX spectra in the area of (A) and (B), and area-scan EDX spectrum (C).

(a)

(b)

(c)

(d)