TY - JOUR
T1 - Nanoscale phase separation in coated Ag nanoparticles
AU - Diaz-Fernandez, Yuri Antonio
AU - Pallavicini, Piersandro
AU - Pasotti, Luca
AU - Milanese, Chiara
AU - Pellicer, Eva
AU - Baró, Maria D.
AU - Ren, Yang
AU - Malavasi, Lorenzo
PY - 2011/10/1
Y1 - 2011/10/1
N2 - In this paper we report the structural investigation of cysteine and glutathione capped Ag nanoparticles (NPs) by means of transmission electron microscopy (TEM), synchrotron X-ray diffraction (XRD) and pair distribution function (PDF) analysis. The combined use of these probes allowed us to observe the presence of two crystal structures in the coated AgNPs, i.e., the cubic and the hexagonal crystal structures of Ag. In particular, it was possible to demonstrate that the coated AgNPs are a nanoscale phase separated system where the two phases coexist within the single grain. In addition, the relative bulk amount of the fcc and hcp phases has been estimated and a possible correlation with the capping agent proposed. © 2011 The Royal Society of Chemistry.
AB - In this paper we report the structural investigation of cysteine and glutathione capped Ag nanoparticles (NPs) by means of transmission electron microscopy (TEM), synchrotron X-ray diffraction (XRD) and pair distribution function (PDF) analysis. The combined use of these probes allowed us to observe the presence of two crystal structures in the coated AgNPs, i.e., the cubic and the hexagonal crystal structures of Ag. In particular, it was possible to demonstrate that the coated AgNPs are a nanoscale phase separated system where the two phases coexist within the single grain. In addition, the relative bulk amount of the fcc and hcp phases has been estimated and a possible correlation with the capping agent proposed. © 2011 The Royal Society of Chemistry.
UR - https://www.scopus.com/pages/publications/80053590014
U2 - 10.1039/c1nr10832h
DO - 10.1039/c1nr10832h
M3 - Article
SN - 2040-3364
VL - 3
SP - 4220
EP - 4225
JO - Nanoscale
JF - Nanoscale
ER -