Etching and aging effects in nanosize Au clusters investigated using high resolution size-exclusion chromatography.

Journal Article · Sun Jun 01 00:00:00 EDT 2003 · Proposed for publication in Journal of Physical Chemistry B.

OSTI ID:946992

Provencio, Paula Polyak; Wilcoxon, Jess Patrick

Experiments using high-resolution size exclusion chromatography (HRSEC), dynamic light scattering, and transmission electron microscopy are conducted to investigate the effects of aging of Au nanoclusters in the presence of surfactant ligands. It is observed that contrary to the expectation that aging in solution will always broaden the size dispersion and increase the average size (Ostwald ripening), a narrowing of the size dispersion and change in average size can occur with time under ambient conditions.

• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 946992
• Report Number(s): SAND2003-2316J; TRN: US200904%%301
• Journal Information: Proposed for publication in Journal of Physical Chemistry B., Journal Name: Proposed for publication in Journal of Physical Chemistry B.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
AGING
GOLD
ATOMIC CLUSTERS
NANOSTRUCTURES
SURFACTANTS