Journal
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume 11, Issue 1, Pages 182-186Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b814599g
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Funding
- Japanese Ministry for Education, Culture, Sports, Science and Technology (MEXT) [CTQ2006-15681-C0]
- Spanish Ministry of Education and Science [BE-2007]
- Generalitat de Catalunya, Spain
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Electrochemical activation of carbon nanotube/polysulfone composite electrodes for enhanced heterogeneous electron transfer is studied. The physicochemical insight into the electrochemical activation of carbon nanotube/polymer composites was provided by transmission electron microscopy, Raman spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. Dopamine, ascorbic acid, NADH, and ferricyanide are used as a model redox system for evaluating the performance of activated carbon nanotube/polymer composite electrodes. We demonstrate that polymer wrapping of carbon nanotubes is subject to defects and to partial removal during activation. Such tunable activation of electrodes would enable on-demand activation of electrodes for satisfying the needs of sensing or energy storage devices.
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