Synthesis of platinum dendrites and nanowires via directed electrochemical nanowire assembly

Jason K. Kawasaki, Craig B. Arnold

Research output: Contribution to journalArticle

55 Scopus citations

Abstract

Directed electrochemical nanowire assembly is a promising high growth rate technique for synthesizing electrically connected nanowires and dendrites at desired locations. Here we demonstrate the directed growth and morphological control of edge-supported platinum nanostructures by applying an alternating electric field across a chloroplatinic acid solution. The dendrite structure is characterized with respect to the driving frequency, amplitude, offset, and salt concentration and is well-explained by classical models. Control over the tip diameter, side branch spacing, and amplitude is demonstrated, opening the door to novel device architectures for sensing and catalytic applications.

Original languageEnglish (US)
Pages (from-to)781-785
Number of pages5
JournalNano Letters
Volume11
Issue number2
DOIs
StatePublished - Feb 9 2011

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

Keywords

  • DENA
  • Platinum nanowire
  • electrochemical deposition
  • metal nanodendrite
  • nanowire sensor
  • platinum dendrite growth

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