nanoparticle: 4 nm PtO tetrahedron
surface: 25% hydroxyl oxidized graphite
film: Nafion (15-mer with EW=1144)
water content: λ = 9 H2O/HSO3
separation distance: minimum

  • dark gray = C
  • white = H
  • red = O
  • light gray = Pt
  • yellow = S
  • pale pink = O in hydronium ion