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Citation: Cao Lin-You, Diao Peng, Liu Zhong-Fan. Preparation of Au (core)-Cu (shell) Nanoparticles Assembly by Electrodeposition[J]. Acta Physico-Chimica Sinica, ;2002, 18(12): 1062-1067. doi: 10.3866/PKU.WHXB20021202 shu

Preparation of Au (core)-Cu (shell) Nanoparticles Assembly by Electrodeposition

1.
Center for Nanoscale Science and Technology, College of Chemistry and Molecular Engineering, Peking University, Beijing　100871

Received Date: 28 March 2002
Available Online: 15 December 2002

Submonolayer assembly of Au (core)-Cu (shell) nanoparticles was prepared by electrodeposition of Cu on Au nanoparticles assembly electrode, where AUDT＋DT mixed monolayer was used as the coupling layer between ld substrate and Au nanoparticles. Under suitable polarized potential, Cu was found to be selectively electrodeposited on Au nanoparticles rather than on the organic monolayer. At －0.03 V, Au (core)-Cu (shell) nanoparticles have od monodispersity and spherical shape until their diameters exceeded 20 nm,and the diameters of which are in od accordance with those calculated by coulometry.
- Core-shell nanoparticles;Electrodeposition;Self-assembly monolayers;　Au nanoparticles;Cu nanoparticles
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