Gram-Scale Synthesis of Pt-Cu Nanowires with Enhanced Electrocatalytic Activity towards Methanol Oxidation Reaction

Figure 5

(a) TEM images of Pt₁Cu₁ nanoparticles synthesized without any halogen ions and in the presence of (b) F^-, (c) Cl^-, and (d) I^-.

(a)

(b)

(c)

(d)