Holey gold nanowires formed by photoconversion of dissipative nanostructures emerged at the aqueous-organic interface

研究成果: ジャーナルへの寄稿記事

25 引用 (Scopus)

抄録

Gold nanowires with nanocavities were produced by photochemical reduction of Au(OH)4-/tetra-alkyl ammonium ion pairs that are preorganized specifically under far-from-equilibrium conditions. Aqueous solution containing Au(OH)4-ion was layered on a chloroform solution of tetrabutylammonium hexafluorophosphate (TBAPF6). UV light was then vertically illuminated to the interface without stirring, so that Au(III) ions self-assembled at the interface are reduced under the far-from equilibrium condition. 1mL of acetonitrile was added to the dark aqueous phase, and the mixture was centrifuged at 15000 rpm. The X-ray photoelectron spectroscopy (XPS) revealed sharp peaks at binding energies of 84.0 eV and 87.9 eV, which are assigned to emissions from electrons of Au. The osmotic pressure revealed by tetra-alkylammonium ions in the organic phase drives their vectorial transport across the interface, which flux assists the self-organization of ion pairs into dissipative nanostructures.

元の言語英語
ページ(範囲)2043-2047
ページ数5
ジャーナルSmall
5
発行部数18
DOI
出版物ステータス出版済み - 9 18 2009

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Nanowires
Nanostructures
Gold
Ions
Photoelectron Spectroscopy
Osmotic Pressure
Ultraviolet Rays
Chloroform
Chlorine compounds
Binding energy
Acetonitrile
Ammonium Compounds
Ultraviolet radiation
X ray photoelectron spectroscopy
Electrons
Fluxes

All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Biomaterials
  • Chemistry(all)
  • Materials Science(all)

これを引用

Holey gold nanowires formed by photoconversion of dissipative nanostructures emerged at the aqueous-organic interface. / Soejima, Tetsuro; Morikawa, Masa-Aki; Kimizuka, Nobuo.

:: Small, 巻 5, 番号 18, 18.09.2009, p. 2043-2047.

研究成果: ジャーナルへの寄稿記事

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