Contiguous petal-like carbon nanosheet outgrowths from graphite fibers by plasma CVD

Thiruvelu Bhuvana, Anurag Kumar, Aditya Sood, Roger H. Gerzeski, Jianjun Hu, Venkata Srinu Bhadram, Chandrabhas Narayana, Timothy S. Fisher

Research output: Contribution to journalArticlepeer-review

63 Scopus citations

Abstract

We report a catalyst-free synthesis of cantilevered carbon nanosheet extensions, or petals, from graphite fibers by microwave plasma CVD. Results reveal that the petals grow from the fiber surface layers while preserving graphitic continuity from fiber to the petals. Subtraction of Raman signatures from pristine and decorated fibers reveals a convolution of two underlying peaks at 2687 and 2727 cm?1 that are consistent with profiles of multilayer graphene flakes between 5 and 25 layers. Such structures offer the possibility of minimizing interfacial losses in transport applications, improved interactions with surrounding matrix materials in composites, and a route toward substrate independence for device applications.

Original languageEnglish (US)
Pages (from-to)644-648
Number of pages5
JournalACS Applied Materials and Interfaces
Volume2
Issue number3
DOIs
StatePublished - Mar 24 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Materials Science

Keywords

  • Carbon fiber
  • Carbon nanosheet
  • Fiber composite
  • Grapheme
  • Graphite flake

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