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Citation: YU Zhi- Hui, TIAN Mi, JIAO Qing-Ying, XIA Ding- Guo. Self-assembling Nanobimetallic Particles of Au-Pt on Glassy Carbon Electrode[J]. Acta Physico-Chimica Sinica, ;2006, 22(08): 1015-1020. doi: 10.3866/PKU.WHXB20060821 shu

Self-assembling Nanobimetallic Particles of Au-Pt on Glassy Carbon Electrode

1.
College of Environmental and Energy Engineering, Beijng University of Technology, Bejing 100022, P. R. China

Received Date: 15 December 2005
Available Online: 7 July 2006

Nanobimetallic particles of Au-Pt alloy were synthesized by reducing HAuCl4 and H2PtCl4 mixture solution with NaBH4. UV-Vis spectra, transmission electron microscopy (TEM), and X- ray diffraction (XRD) results revealed that the alloy was single phase with face- centered cube structure. The Au- Pt/Cysteine/glassy carbon electrode was prepared by self- assembling nanobimetallic particles on glassy carbon substrate modified with cysteine and was characterized with scanning electron microscopy (SEM). The average diameter of the particles was 12.6 nm. The electrochemical performance of Au- Pt/ Cysteine/glassy carbon electrode was studied by cyclic voltammetry method. The result showed that the electrode of Au- Pt/ Cysteine /glassy- carbon had od electrocatalytic activity for methanol oxidation.
- Nanobimetallic particles;Au-Pt;Self-assemble
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