A three-dimensional gold-decorated nanoporous copper core-shell composite for electrocatalysis and nonenzymatic biosensing

L. Y. Chen, T. Fujita, Y. Ding, M. W. Chen

Research output: Contribution to journalArticlepeer-review

146 Citations (Scopus)

Abstract

Bimetallic core-shell nanostructures have attracted increasing attention due to their low material costs along with enhanced chemico-physical properties in comparison with their monometallic counterparts. Here, a novel gold-decorated nanoporous copper (Au > N PC) core-shell composite fabricated by a facile in situ hydrometallurgy approach is reported. Thin gold shells with a controllable thickness are homogeneously deposited onto the internal surfaces of 3D nanoporous copper via a spontaneous displacement reaction while nanoporous copper is utilized as a reduction agent as well as 3D template and substrate. The resulting inexpensive core-shell nanostructure exhibits significant electrocatalytic activity for the oxidation of methanol and high non-enzymatic sensitivity in detecting glucose.

Original languageEnglish
Pages (from-to)2279-2285
Number of pages7
JournalAdvanced Functional Materials
Volume20
Issue number14
DOIs
Publication statusPublished - 2010 Jul 23

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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