Urchin-like Ag nanowires as non-enzymatic hydrogen peroxide sensor

Wei Han Hsiao, Hsin Yu Chen, Ta Ming Cheng, Ting Kai Huang, Yu Liang Chen, Chi Young Lee, Hsin-Tien Chiu*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Urchin-like Ag nanowires were prepared by reacting AgNO 3(aq) with Cu metal in the presence of cetyltrimethylammonium chloride and HNO 3(aq) on a screen printed carbon electrode at room temperature. The diameters of the nanowires were about 100 nm, while the lengths were up to 10 μm. Cyclic voltammetric experiments using the Ag nanowires as the working electrode showed electrocatalytic H 2O 2 reduction. The electrode exhibited a high sensitivity of 4705 μAmM -1mg -1cm -2 from 50 μMto 10.35 mM and a measurable detection limit of 10 μM in amperometric detection. This is the first report on Ag NWs for non-enzymatic H 2O 2 sensing.

Original languageEnglish
Pages (from-to)500-506
Number of pages7
JournalJournal of the Chinese Chemical Society
Volume59
Issue number4
DOIs
StatePublished - 1 Apr 2012

Keywords

  • Ag nanowire
  • Amperometric sensor
  • H O

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