Carbonaceous impurities in carbon nanotubes are responsible for accelerated electrochemistry of cytochrome c

Lu Wang, Adriano Ambrosi, Martin Pumera

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There have been many reports on the excellent electrocatalytic properties of carbon nanotubes toward many substrates. Here, we wish to address and investigate the apparent "good promotion" of the electron transfer to cytochrome c as previously shown and attributed to the electrocatalytic properties of carbon nanotubes (Wang et al. Anal. Chem. 2002, 74, 1993). We will show here that the observed electrocatalytic effect toward this probe could be mainly attributed to the carbonaceous impurities present within the carbon nanotubes samples, instead of the carbon nanotubes themselves.

Original languageEnglish
Pages (from-to)6195-6197
Number of pages3
JournalAnalytical Chemistry
Issue number13
Publication statusPublished - 2013 Jul 2


All Science Journal Classification (ASJC) codes

  • Analytical Chemistry

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