Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 10, Issue 9, Pages 1242-1245Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2008.06.010
Keywords
vertically aligned carbon nanotubes; VACNT; PECVD; modified electrodes; microelectrodes; thin film electrodes
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Funding
- MEDU of Spain [DP12006-03070, TEC2006-13109-CO3-01/MIC]
- Generalitat de Catalunya [SGR2005-00666]
- Spanish Ministry of Education
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We present a methodology to fabricate carbon nanotube based electrodes using plasma enhanced chemical vapour deposition. The metal catalyst nanoparticles used to promote nanotube growth are removed using a water plasma treatment in combination with an acid attack. The final integrated microelectrode-based devices present excellent electrocatalytic properties that make them suitable for electrochemical applications. The presented methodology enables the construction of highly regular and dense vertically aligned carbon nanotube (VACNT) forests that can be confined within the patterned bounds of a desired surface. These VACNT electrodes display very low capacitive currents and are amenable to further chemical modifications. (C) 2008 Elsevier B.V. All rights reserved.
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