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Cyclic voltammetry on electrode surfaces covered with porous layers: An analysis of electron transfer kinetics at single-walled carbon nanotube modified electrodes

Abstract:

Cyclic voltammetry is recorded of the oxidation of ferrocyanide on a glassy carbon electrode modified with multiple layers of single-walled carbon nanotubes. The current response is interpreted in terms of semi-infinite planar diffusion towards the macro-electrode surface and in terms of oxidation of the electroactive species trapped in pockets in between the nanotubes. A thin layer model is used to illustrate the effects of diffusion within a porous layer. It is found that a semi-infinite pl...

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Publication status:
Published

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Publisher copy:
10.1016/j.snb.2008.03.015

Authors


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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Physical & Theoretical Chem
Role:
Author
Journal:
SENSORS AND ACTUATORS B-CHEMICAL More from this journal
Volume:
133
Issue:
2
Pages:
462-466
Publication date:
2008-08-12
DOI:
ISSN:
0925-4005
Language:
English
Keywords:
UUID:
uuid:0b9b3d2b-4be9-429e-9c8e-d27247d8d55c
Local pid:
pubs:40845
Source identifiers:
40845
Deposit date:
2012-12-19

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