Figure 4

(a) 12 nm (b) 30 nm (c) 45 nm Au nanoparticles on the redox reaction of 30 mM potassium ferricynide at 15 °C Au = 3.7 nM using 50 mM NaBH4.

(a) 12 nm (b) 30 nm (c) 45 nm Au nanoparticles on the redox reaction of 30 mM potassium ferricynide at 15 °C Au = 3.7 nM using 50 mM NaBH4.