Dealloying solution dependence of fabrication, microstructure and porosity of hierarchical structured nanoporous copper ribbons

Wenbo Liu, Long Chen, Jiazhen Yan, Ning Li, San-Qiang Shi, Shichao Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)

Abstract

The monolithic hierarchical structured nanoporous copper ribbons (HSNCRs) have been facilely fabricated by one-pot chemical dealloying of dual-phase Al 27. at.% Cu alloy with hypereutectic structure. The results show that dealloying solution has a key influence on fabrication, microstructure and porosity of products. The HSNCRs are composed of interconnected large-sized maze/river-shape channels with laminated/uniform porous channel walls upon dealloying in acidic/alkaline medium. The specific surface area of samples by dealloying in alkaline solution is two times larger than that in acidic solution. Additionally, microstructure (morphology, sizes and distribution) and porosity of products can be tuned effectively by changing dealloying solution.
Original languageEnglish
Pages (from-to)114-121
Number of pages8
JournalCorrosion Science
Volume94
DOIs
Publication statusPublished - 1 Jan 2015

Keywords

  • A. Alloy
  • A. Copper
  • B. Polarization
  • B. TEM
  • C. Acid corrosion
  • C. Alkaline corrosion

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Science(all)

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