New pathway for the synthesis of gold and silver bimetallic nanocomplexes and their derivatives of polypyrrole nanorods (TM04096)

Yu Chuan Liu, Shung J. Yang

研究成果: 雜誌貢獻文章同行評審

7 引文 斯高帕斯(Scopus)

摘要

We report here the first electrochemical pathway to prepare Au- and Ag-containing bimetallic nanocomplexes with a mean diameter of 5 nm in 0.1 M 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 solution containing 0.1 M HCl. Silver-containing complexes were left in the solution after the ORC treatment. Then a gold substrate was subsequently roughened by the similar ORC treatment in this solution. Encouragingly, polypyrrole (PPy)-coated Au and Ag bimetallic nanocomposites with a nanorod structure and a diameter smaller than 15 nm can be prepared by the formation of self-assembled monolayers and orderly autopolymerization of pyrrole monomers on these bimetallic nanocomplexes, and further link them together.

原文英語
頁(從 - 到)3674-3678
頁數5
期刊Electrochimica Acta
50
發行號18
DOIs
出版狀態已發佈 - 六月 10 2005
對外發佈

ASJC Scopus subject areas

  • 化學工程 (全部)
  • 分析化學
  • 電化學

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