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

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)2043-2047
Number of pages5
JournalSmall
Volume5
Issue number18
DOIs
Publication statusPublished - Sep 18 2009

Fingerprint

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)

Cite this

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

In: Small, Vol. 5, No. 18, 18.09.2009, p. 2043-2047.

Research output: Contribution to journalArticle

@article{375fe37d1fd64fa29b186f779ebed7d1,
title = "Holey gold nanowires formed by photoconversion of dissipative nanostructures emerged at the aqueous-organic interface",
abstract = "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.",
author = "Tetsuro Soejima and Masa-Aki Morikawa and Nobuo Kimizuka",
year = "2009",
month = "9",
day = "18",
doi = "10.1002/smll.200900348",
language = "English",
volume = "5",
pages = "2043--2047",
journal = "Small",
issn = "1613-6810",
publisher = "Wiley-VCH Verlag",
number = "18",

}

TY - JOUR

T1 - Holey gold nanowires formed by photoconversion of dissipative nanostructures emerged at the aqueous-organic interface

AU - Soejima, Tetsuro

AU - Morikawa, Masa-Aki

AU - Kimizuka, Nobuo

PY - 2009/9/18

Y1 - 2009/9/18

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=70349448347&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70349448347&partnerID=8YFLogxK

U2 - 10.1002/smll.200900348

DO - 10.1002/smll.200900348

M3 - Article

C2 - 19462380

AN - SCOPUS:70349448347

VL - 5

SP - 2043

EP - 2047

JO - Small

JF - Small

SN - 1613-6810

IS - 18

ER -