Rapid and high-yield synthesis of silver nanowires using air-assisted polyol method with chloride ions

Xinling Tang, Masaharu Tsuji, Peng Jiang, Michiko Nishio, Sang Min Jang, Seong-Ho Yoon

Research output: Contribution to journalArticle

87 Citations (Scopus)

Abstract

Effects of gas bubbling were studied for synthesis of silver nanostructures from a mixture of AgNO3/NaCl/poly(vinylpyrrolidone) (PVP) in ethylene glycol (EG). Monodispersed silver nanowires were synthesized under oil-bath heating in high yield (>90% without isolation) using bubbling of air through a reagent solution from ca. 20 °C to the boiling point of EG (198 °C) for 20 min. On the other hand, mixtures of cubes, bipyramids, and wires were prepared under bubbling of N2. The Ag nanostructures' growth mechanism was studied by observing ultraviolet-visible (UV-vis) spectra and transmission electron microscope (TEM) images at various temperatures. Results show that the formation process of Ag nanostructures under gas bubbling is separable into two stages: a low temperature range of 20-180 °C at 0-17 min, where mixtures of variously shaped Ag seeds are produced independent of the bubbling gas; and a high temperature range of 180-198 °C at 17-20 min, where rapid growth of nanowires and oxidative etching of cubes and bipyramids by Cl-/O2 occur simultaneously in bubbling of air, thereby producing long nanowires in high yield. Because the etching process is absent during processing by bubbling of N2, mixtures of shorter nanowires, cubes, and bipyramids are produced.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume338
Issue number1-3
DOIs
Publication statusPublished - Apr 15 2009

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Polyols
Silver
Nanowires
Chlorides
nanowires
chlorides
silver
Ions
Nanostructures
Ethylene Glycol
Gases
air
synthesis
Air
Ethylene glycol
glycols
Etching
ions
ethylene
nanostructure growth

All Science Journal Classification (ASJC) codes

  • Surfaces and Interfaces
  • Physical and Theoretical Chemistry
  • Colloid and Surface Chemistry

Cite this

Rapid and high-yield synthesis of silver nanowires using air-assisted polyol method with chloride ions. / Tang, Xinling; Tsuji, Masaharu; Jiang, Peng; Nishio, Michiko; Jang, Sang Min; Yoon, Seong-Ho.

In: Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol. 338, No. 1-3, 15.04.2009, p. 33-39.

Research output: Contribution to journalArticle

Tang, Xinling ; Tsuji, Masaharu ; Jiang, Peng ; Nishio, Michiko ; Jang, Sang Min ; Yoon, Seong-Ho. / Rapid and high-yield synthesis of silver nanowires using air-assisted polyol method with chloride ions. In: Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2009 ; Vol. 338, No. 1-3. pp. 33-39.
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