TY - JOUR
T1 - Laser-induced alloying Au-Pd and Ag-Pd colloidal mixtures
T2 - The formation of dispersed Au/Pd and Ag/Pd nanoparticles
AU - Chen, Yu Hung
AU - Tseng, Yao Hung
AU - Yeh, Chen Sheng
PY - 2002
Y1 - 2002
N2 - Laser irradiation of colloidal mixtures consisting of Au-Pd and Ag-Pd were conducted to synthesize Au/Pd and Ag/Pd alloy nanoparticles. Compositional ratios of 1:1 and 2:1 were prepared in both the Au/Pd and Ag/Pd systems. The compositions, the particle sizes, and the morphology were measured as a function of the laser irradiation period in order to monitor the changes from the two-component mixtures into the alloy colloids. The average particle sizes of the 1:1 and 2:1 metal ratios were 3.9 ± 1.2 nm and 4.3 ± 1.1 nm, respectively, for Au/Pd and 7.3 ± 2.0 nm and 5.4 ± 2.0 nm, respectively, for Ag/Pd. However, Ag/Pd with a 2:1 ratio had difficult in forming dispersed spherical particles and the expected compositions. In addition to EDX analysis, X-ray diffraction measurements were carried out to confirm the formation of the alloy nanoparticles.
AB - Laser irradiation of colloidal mixtures consisting of Au-Pd and Ag-Pd were conducted to synthesize Au/Pd and Ag/Pd alloy nanoparticles. Compositional ratios of 1:1 and 2:1 were prepared in both the Au/Pd and Ag/Pd systems. The compositions, the particle sizes, and the morphology were measured as a function of the laser irradiation period in order to monitor the changes from the two-component mixtures into the alloy colloids. The average particle sizes of the 1:1 and 2:1 metal ratios were 3.9 ± 1.2 nm and 4.3 ± 1.1 nm, respectively, for Au/Pd and 7.3 ± 2.0 nm and 5.4 ± 2.0 nm, respectively, for Ag/Pd. However, Ag/Pd with a 2:1 ratio had difficult in forming dispersed spherical particles and the expected compositions. In addition to EDX analysis, X-ray diffraction measurements were carried out to confirm the formation of the alloy nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=0036092196&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036092196&partnerID=8YFLogxK
U2 - 10.1039/b200587e
DO - 10.1039/b200587e
M3 - Article
AN - SCOPUS:0036092196
SN - 0959-9428
VL - 12
SP - 1419
EP - 1422
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
IS - 5
ER -