Issue 26, 2011
From the journal:

Physical Chemistry Chemical Physics

Electrochemical stability of self-assembled monolayers on nanoporous Au†

Masataka Hakamada,*a   Masaki Takahashi,a   Toshiyuki Furukawa,a   Kazuki Tajima,b   Kazuki Yoshimura,b   Yasumasa Chinob  and  Mamoru Mabuchia  

* Corresponding authors

a Department of Energy Science and Technology, Graduate School of Energy Science, Kyoto University, Kyoto 606-8501, Japan
E-mail: hakamada.masataka.3x@kyoto-u.ac.jp
Fax: +81 75 753 5428
Tel: +81 75 753 5427

b Materials Research Institute for Sustainable Development, National Institute of Advanced Industrial Science and Technology (AIST), Moriyama, Nagoya 463-8560, Japan

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.

Graphical abstract: Electrochemical stability of self-assembled monolayers on nanoporous Au

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Article information

DOI
https://doi.org/10.1039/C0CP02553D
Article type
Paper
Submitted
16 Nov 2010
Accepted
07 May 2011
First published
31 May 2011

Phys. Chem. Chem. Phys., 2011,13, 12277-12284

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Electrochemical stability of self-assembled monolayers on nanoporous Au

M. Hakamada, M. Takahashi, T. Furukawa, K. Tajima, K. Yoshimura, Y. Chino and M. Mabuchi, Phys. Chem. Chem. Phys., 2011, 13, 12277 DOI: 10.1039/C0CP02553D

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