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Cited by 161

The DOI matches its Crossref record; 1 of the 1 references it cites were found in a registry or an index.

Estimation of Surface Oxide on Surfactant-Free Gold Nanoparticles Laser-Ablated in Water

Muto, Hitomi, Yamada, Kunihiro, Miyajima, Ken, Mafuné, Fumitaka·2007·The Journal of Physical Chemistry C

Abstract

Surfactant-free gold nanoparticles were prepared by laser ablation of a gold metal plate in water. The nanoparticles were characterized by absorption spectroscopy, ζ-potential measurements, and XPS spectroscopy. The nanoparticles are negatively charged because the surface atoms are partially oxidized to Au−O -, according to the literature by Sacher and co-workers ( J. Phys. Chem. B, 2004, 108, 16864). We further examined electrostatic interactions between nanoparticle and cationic surfactants. It was found that the surfactant cations attach to the particle surface, neutralizing the particle charge. Taking advantage of the electrostatic interactions, we estimated that 3.3−6.6% of the surface gold atoms was oxidized in water.

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Metadata

Authors
Muto, H., Yamada, K., Miyajima, K., & Mafuné, F.
Venue
The Journal of Physical Chemistry C
Published
2007-10-26
Volume
111
Issue
46
Pages
17221-17226
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2072516544
Cited by
161
References
1
FWCI
4.34
Type
journal article
Language
en
Open access
closed

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