Platelet graphite nanofibers for electrochemical sensing and biosensing: The influence of graphene sheet orientation

Adriano Ambrosi, Toshio Sasaki, Martin Pumera

Research output: Contribution to journalArticle

108 Citations (Scopus)

Abstract

Here, we demonstrate thatplatelet graphite nanofibers (PGNFs) exhibit fast heterogeneous electrontransfer rates for a wide variety of compounds such as FeCl3, ferrocyanide, dopamine, uric acid, ascorbic acid, and the reduced form of β-nicotinamide adenine dinucleotide. The electrochemical properties of PGNFs are superior to those of multiwalled carbon nanotubes (MWCNTs) or graphite microparticles (GMPs). Transmission electron microscopy and Raman spectroscopy reveal that this arises from the unique graphene sheet orientation of such platelet nanofibers, which accounts for their unparalleled high ratio of graphene edge planes versus basal planes.

Original languageEnglish
Pages (from-to)266-271
Number of pages6
JournalChemistry - An Asian Journal
Volume5
Issue number2
DOIs
Publication statusPublished - 2010 Feb 1

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Organic Chemistry

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