RT info:eu-repo/semantics/article
T1 Interfacial doping of carbon nanotubes at the polarisable organic/water interface: a liquid/liquid pseudo-capacitor
A1 Toth, P. S. .
A1 Rodgers, A. N. J. .
A1 Rabiu, A. K. .
A1 Ibáñez Martínez, David
A1 Yang, J. X. .
A1 Colina Santamaría, Álvaro
A1 Dryfe, Robert A. W. .
K1 Chemistry, Analytic
K1 Química analítica
AB The electrochemical reactivity of single-walled carbon nanotube (SWCNT) films, assembled at a polarisableorganic/water interface, has been probed using model redox species. Electrons generated by the oxidationof organic 1,10-dimethylferrocene (DMFc) to DMFc+ can be transferred through the assembled SWCNT layerand reduce aqueous ferricyanide (Fe(CN)63 ) to ferrocyanide (Fe(CN)64 ), with a doping interactionobserved. Several electrochemical techniques, including cyclic voltammetry and electrochemicalimpedance spectroscopy (EIS), were employed to confirm that the model redox couples dope/chargethe SWCNTs. In situ Raman spectro-electrochemistry was also applied to verify the charge transferprocesses occurring at the assembled SWCNT films and confirm that the doping effect of the carbonnanotubes is initiated by electrochemical reactions. This doping interaction indicated that the adsorbedSWCNT films can act as a pseudo-capacitor, showing a high area-normalised capacitance. The deeperunderstanding of the electrochemical properties of SWCNTs, gained from this study, will help determinethe performance of this material for practical applications.
PB Royal Society of Chemistry
SN 2050-7488
YR 2016
FD 2016-05
LK http://hdl.handle.net/10259/4796
UL http://hdl.handle.net/10259/4796
LA eng
NO U.K. EPSRC (grants EP/K007033/1, EP/K039547/1, EP/K016954/1) and Ministerio de Economía yCompetitividad de España (CTQ2014-55583-R, CTQ2014-61914-EXP)
DS Repositorio Institucional de la Universidad de Burgos
RD 04-dic-2024