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. 2021 Jul 13;12:4287. doi: 10.1038/s41467-021-24590-y

Fig. 4. Crossover behavior of ligand adsorption on different facets and application to facet-tuned Au nanoparticle synthesis.

Fig. 4

a–c Three scenarios for adsorbed ligand density ρ as a function of [L] between a strong (green) and a weak (magenta) adsorbing facet based on Eq. (2). d–i Left: SEM images of Au nanoparticles synthesized at increasing [CTAB]: 0.26 (d), 0.52 (e), 1.04 (f), 1.56 (g), 2.34 (h), and 3.12 mM (i). Right: corresponding CV of underpotential Pb deposition (Supplementary Information section 1.4); j: current density. The Pb deposition peaks on Au{111} and Au{110} are denoted in d. All potentials are relative to RHE. Scale bars: 500 nm in d–f; 2 μm in g–i. j Fractions of Au{110} and Au{111} facets vs. [CTAB] derived from CVs in d–i.