Iron oxide particles are the active sites for hydrogen peroxide sensing at multiwalled carbon nanotube modified electrodes

Biljana Sljukić; Craig E Banks; Richard G Compton

doi:10.1021/nl060366v

Iron oxide particles are the active sites for hydrogen peroxide sensing at multiwalled carbon nanotube modified electrodes

Nano Lett. 2006 Jul;6(7):1556-8. doi: 10.1021/nl060366v.

Authors

Biljana Sljukić¹, Craig E Banks, Richard G Compton

Affiliation

¹ Physical and Theoretical Chemistry Laboratory, University of Oxford, UK.

PMID: 16834449
DOI: 10.1021/nl060366v

Abstract

We demonstrate that the "electrocatalytic" hydrogen peroxide detection reported at multiwalled carbon nanotube modified electrodes is due to iron oxide particles arising from the chemical vapor deposition nanotube fabrication process rather than due to intrinsic catalysis attributable to the carbon nanotubes arising, for example, from edge plane-like sites/defects.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Binding Sites
Electrochemistry
Electrodes*
Ferric Compounds / chemistry*
Hydrogen Peroxide / chemistry*
Nanotubes, Carbon*
Oxidation-Reduction
Surface Properties

Substances

Ferric Compounds
Nanotubes, Carbon
ferric oxide
Hydrogen Peroxide