TY - GEN
T1 - One-pot synthesis of PtAu nanoparticles and their catalytic activities
AU - Xu, Zhichuan
AU - Wanjala, Bridgid N.
AU - Mott, Derrick
AU - Njoki, Peter N.
AU - Luo, Jin
AU - Zhong, Chuan Jian
PY - 2008
Y1 - 2008
N2 - While bimetallic AuPt nanoparticles have been shown to exhibit synergistic catalytic activities in fuel cell reactions, the precise control of the bimetallic composition presents an important challenge. This presentation describes the findings of a new approach to the synthesis of monodispersed PtAu nanoparticles, which involved thermal control and chemical reduction of HAuCl4 and H2PtCl6 in organic solvents. The composition of PtAu nanoparticles can be controlled by varying feeding ratio of Pt and Au precursors and manipulating reaction time and reaction temperature. The as-synthesized AuPt nanoparticles were characterized by TEM, DCP, XRD and UV-Vis techniques, which allowed us to develop some insights into the mechanistic aspects for the size and composition control. The results from the study of the electrocatalytic activities of the PtAu nanoparticles supported on carbon materials are also discussed.
AB - While bimetallic AuPt nanoparticles have been shown to exhibit synergistic catalytic activities in fuel cell reactions, the precise control of the bimetallic composition presents an important challenge. This presentation describes the findings of a new approach to the synthesis of monodispersed PtAu nanoparticles, which involved thermal control and chemical reduction of HAuCl4 and H2PtCl6 in organic solvents. The composition of PtAu nanoparticles can be controlled by varying feeding ratio of Pt and Au precursors and manipulating reaction time and reaction temperature. The as-synthesized AuPt nanoparticles were characterized by TEM, DCP, XRD and UV-Vis techniques, which allowed us to develop some insights into the mechanistic aspects for the size and composition control. The results from the study of the electrocatalytic activities of the PtAu nanoparticles supported on carbon materials are also discussed.
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M3 - Conference contribution
AN - SCOPUS:77955858010
SN - 9780841269941
T3 - ACS National Meeting Book of Abstracts
BT - American Chemical Society - 236th National Meeting and Exposition, Abstracts of Scientific Papers
T2 - 236th National Meeting and Exposition of the American Chemical Society, ACS 2008
Y2 - 17 August 2008 through 21 August 2008
ER -