Magnetic properties and large-scale synthesis of novel carbon nanocomposites via benzene decomposition over Ni nanoparticles

Qi Xiaosi, Xu Meihua, Zhong Wei*, Ye Xiaojuan, Deng Yu, Chak Tong AU, Jin Changqing, Du Youwei

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

15 Citations (Scopus)

Abstract

Nanorods composed of carbon nanoflakes have been synthesized via catalytic decomposition of benzene at temperatures as low as 350°C over Ni nanoparticles derived from sol-gel synthesis followed by hydrogen reduction. Field-emission scanning electron microscopic and high-resolution transmission electron microscopic images reveal that the carbon nanoflakes are tightly stacked. We investigated the effects of reaction temperature and catalyst amount on the yield, morphology, and magnetic properties of the products. Above 500°C, the main product was carbon nanotubes. After optimization of reaction parameters, the maximum purity and yield of carbon nanoflakes at 460°C were 97.9 wt % and ca. 4579% whereas those of nanotubes at 550°C were 96.7 wt % and ca. 2892%, respectively. Compared to the methods reported in the literature, the approach described herein has the advantages of being simple, low-cost, and environmentally friendly and is suitable for the mass production of one-dimensional carbon nanocomposites that contain magnetic nickel nanoparticles.

Original languageEnglish
Pages (from-to)2267-2272
Number of pages6
JournalJournal of Physical Chemistry C
Volume113
Issue number6
DOIs
Publication statusPublished - 12 Feb 2009

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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