New pathway for sonoelectrochemical synthesis of gold-silver alloy nanoparticles from their bulk substrates

Yu Chuan Liu, Hsun Tsing Lee, Hsueh Hsin Peng

研究成果: 雜誌貢獻文章同行評審

16 引文 斯高帕斯(Scopus)

摘要

In this study, we report the first sonoelectrochemical methods to prepare gold-silver alloy nanoparticles with the mean diameter of 5 nm in 0.1 N HCl aqueous solutions without addition of any stabilizer. First, a silver substrate was roughened by a triangular-wave oxidation-reduction cycle (ORC) in an aqueous containing 0.1 N HCl. Silver-containing complexes were found in the solution after the ORC treatment. Then a gold substrate was subsequently roughened by the similar ORC treatment in the same solution containing the silver complexes. After this procedure Au- and Ag-containing complexes were left in the solution. Then the Au working electrode was immediately replaced by a Pt electrode and a cathodic overpotential of 0.6 V from the open circuit potential (OCP) of ca. 0.75 V vs Ag/AgCl was applied under sonification to synthesize Au-Ag alloy nanoparticles.

原文英語
頁(從 - 到)436-440
頁數5
期刊Chemical Physics Letters
400
發行號4-6
DOIs
出版狀態已發佈 - 十二月 21 2004
對外發佈

ASJC Scopus subject areas

  • 物理與理論化學
  • 光譜
  • 原子與分子物理與光學

指紋

深入研究「New pathway for sonoelectrochemical synthesis of gold-silver alloy nanoparticles from their bulk substrates」主題。共同形成了獨特的指紋。

引用此