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Updated: Jun 1, 2026
Synthesis, Assembly, and Characterization of Monolayer Protected Gold Nanoparticle Films for Protein Monolayer Electrochemistry
Published on: October 4, 2011
Electrochemical stability of self-assembled monolayers on nanoporous Au
Masataka Hakamada1, Masaki Takahashi, Toshiyuki Furukawa
1Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University, Kyoto, Japan. hakamada.masataka.3x@kyoto-u.ac.jp
Abstract:
Desorption of thiolate self-assembled monolayers (SAMs) seriously limits the fabrication of thiol-based devices. Here we demonstrate that nanoporous Au produced by dealloying Au-Ag alloys exhibits high electrochemical stability against thiolate desorption. Nanoporous Au has many defective sites, lattice strain and residual Ag on the ligament surface. First-principles calculations indicate that these surface aspects increase the binding energy between a SAM and the surface of nanoporous Au.
