TY - GEN
T1 - Synthesis and properties of monometallic and bimetallic silver and gold nanoparticles
AU - Guerrero-Dib, Xavier E.
AU - Ortiz-Médez, Ubaldo
AU - Sepúlveda-Guzmán, Selene
AU - Kharissova, Oxana V.
AU - Ferrer-Luppi, Domingo
AU - Jose-Yacaman, Miguel
PY - 2010
Y1 - 2010
N2 - Synthesis of Au, Ag monometallic, and Au-Ag bimetallic nanoparticles have been synthesized by successive reduction of metal salts with ascorbic acid on prefabricated seeds in the presence of cetyltrimethylammonium bromide (C 16H33)N(CH3)3Br (CTAB), as a cationic surfactant, is presented in this paper. This coverage method for the prefabricated seeds is uniform, although in some cases deviations from a spherical shape are observed with the formation of nanorods or nanoprisms. Results using high-resolution STEM-XEDS elemental mapping suggest that the actual distribution of the two metals within the multilayer spheres may involve partial alloying of the metals.
AB - Synthesis of Au, Ag monometallic, and Au-Ag bimetallic nanoparticles have been synthesized by successive reduction of metal salts with ascorbic acid on prefabricated seeds in the presence of cetyltrimethylammonium bromide (C 16H33)N(CH3)3Br (CTAB), as a cationic surfactant, is presented in this paper. This coverage method for the prefabricated seeds is uniform, although in some cases deviations from a spherical shape are observed with the formation of nanorods or nanoprisms. Results using high-resolution STEM-XEDS elemental mapping suggest that the actual distribution of the two metals within the multilayer spheres may involve partial alloying of the metals.
KW - Cetyltrimethylammonium bromide (CTAB)
KW - Multishell nanostructured particles
KW - Nanoparticles
KW - Transmission electron microscopy (TEM)
UR - http://www.scopus.com/inward/record.url?scp=77957786171&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77957786171&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:77957786171
SN - 9781617387623
T3 - Materials Research Society Symposium Proceedings
SP - 92
EP - 96
BT - Colloidal Nanoparticles for Electronic Applications - Light Emission, Detection, Photovoltaics, and Transport
T2 - 2009 MRS Fall Meeting
Y2 - 30 November 2009 through 4 December 2009
ER -