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Title: XAFS studies of gold and silver-gold nanoparticles in aqueous solution

Abstract

The X-ray absorption fine structure (XAFS) of colloidal Au and Au/Ag nanoparticles (3.5 nm and 20 nm mean diameter) in an aqueous solution has been investigated. Size dependent alloying was observed upon deposition of Ag on Au core. Ag forms distinct layers around the 20 nm Au nanoparticles. In contrast, random mixing is found for Ag deposited on 3.5 nm Au particles.

Authors:
; ; ; ; ; ;  [1]
  1. University of Florida
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE
OSTI Identifier:
1006367
Resource Type:
Journal Article
Journal Name:
J. Synchrotron Rad.
Additional Journal Information:
Journal Volume: 8; Journal Issue: 2001; Journal ID: ISSN 0909-0495
Country of Publication:
United States
Language:
ENGLISH
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; GOLD; GOLD ALLOYS; SILVER ALLOYS; NANOSTRUCTURES; ABSORPTION SPECTROSCOPY; X-RAY SPECTROSCOPY; AQUEOUS SOLUTIONS; DEPOSITION

Citation Formats

Shibata, Tomohiro, Tostmann, Holger, Bunker, Bruce, Henglein, Arnim, Meisel, Dan, Cheong, Seong-kyun, Boyanov, Maxim, and University of Notre Dame). XAFS studies of gold and silver-gold nanoparticles in aqueous solution. United States: N. p., 2010. Web.
Shibata, Tomohiro, Tostmann, Holger, Bunker, Bruce, Henglein, Arnim, Meisel, Dan, Cheong, Seong-kyun, Boyanov, Maxim, & University of Notre Dame). XAFS studies of gold and silver-gold nanoparticles in aqueous solution. United States.
Shibata, Tomohiro, Tostmann, Holger, Bunker, Bruce, Henglein, Arnim, Meisel, Dan, Cheong, Seong-kyun, Boyanov, Maxim, and University of Notre Dame). 2010. "XAFS studies of gold and silver-gold nanoparticles in aqueous solution". United States.
@article{osti_1006367,
title = {XAFS studies of gold and silver-gold nanoparticles in aqueous solution},
author = {Shibata, Tomohiro and Tostmann, Holger and Bunker, Bruce and Henglein, Arnim and Meisel, Dan and Cheong, Seong-kyun and Boyanov, Maxim and University of Notre Dame)},
abstractNote = {The X-ray absorption fine structure (XAFS) of colloidal Au and Au/Ag nanoparticles (3.5 nm and 20 nm mean diameter) in an aqueous solution has been investigated. Size dependent alloying was observed upon deposition of Ag on Au core. Ag forms distinct layers around the 20 nm Au nanoparticles. In contrast, random mixing is found for Ag deposited on 3.5 nm Au particles.},
doi = {},
url = {https://www.osti.gov/biblio/1006367}, journal = {J. Synchrotron Rad.},
issn = {0909-0495},
number = 2001,
volume = 8,
place = {United States},
year = {Thu Sep 30 00:00:00 EDT 2010},
month = {Thu Sep 30 00:00:00 EDT 2010}
}