Synthesis of single-crystalline tungsten nanowires by nickel-catalyzed vapor-phase method at 850 °C

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Shiliang Wang
  • Yuehui He
  • Jin Zou
  • Yao Jiang
  • Jian Xu
  • Baiyun Huang
  • P. K. Liaw

Detail(s)

Original languageEnglish
Pages (from-to)433-436
Journal / PublicationJournal of Crystal Growth
Volume306
Issue number2
Publication statusPublished - 15 Aug 2007
Externally publishedYes

Abstract

Single-crystalline tungsten nanowires have been synthesized by nickel-catalyzed vapor-phase methods at a temperature of 850 °C. The synthesis temperature is significantly below the eutectic temperature of Ni-W binary system (1495 °C), which indicates that the growth of the nickel-catalyzed tungsten nanowires should be controlled by the vapor-solid-solid mechanism. Moreover, calculation results show that the W atoms for the nanowire growth should be transported by the surface diffusion along the hemispherical catalyst particle shell to the interface between catalyst particle and the growing W nanowires. Our study, for the first time, demonstrates that the powerful metal-catalyzed methods are feasible to process metallic nanowires. © 2007 Elsevier B.V. All rights reserved.

Research Area(s)

  • A1. Nanowires, A3. Vapor-solid-solid mechanism, B1. Metallic tungsten

Citation Format(s)

Synthesis of single-crystalline tungsten nanowires by nickel-catalyzed vapor-phase method at 850 °C. / Wang, Shiliang; He, Yuehui; Zou, Jin; Jiang, Yao; Xu, Jian; Huang, Baiyun; Liu, C. T.; Liaw, P. K.

In: Journal of Crystal Growth, Vol. 306, No. 2, 15.08.2007, p. 433-436.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review