@Article{ZaninMaHaRiCoFe:2015:HiSuAr,
author = "Zanin, H. and May, P. W. and Harniman, R. L. and Risbridger, T.
and Corat, Evaldo Jos{\'e} and Fermin, D. J.",
affiliation = "{University of Bristol} and {University of Bristol} and
{University of Bristol} and {University of Bristol} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {University of
Bristol}",
title = "High surface area diamond-like carbon electrodes grown on
vertically aligned carbon nanotubes",
journal = "Carbon",
year = "2015",
volume = "82",
pages = "288--296",
month = "Feb.",
keywords = "Wave plasma CVD, amorphous-carbon, thin-films,
mechanical-properties, DLC coatings, raman, Graphene.",
abstract = "Electrochemically active diamond-like carbon (DLC) electrodes
featuring high specific surface area have been prepared by
plasma-enhanced chemical vapour deposition (CVD) onto densely
packed forests of vertically aligned multiwall carbon nanotubes
(VACNTs). The DLC:VACNT composite film exhibits a complex
topography with web like features and ridges generated by partial
coalescence of the DLC over the CNT arrays. DLC:VACNT electrodes
exhibit low background responses over a large potential window,
low uncompensated resistance, as well as low charge-transfer
impedance in the presence of ferrocyanide as a redox probe. The
interfacial capacitance associated with the DLC:VACNT electrode is
in the range of 0.6 mF cm(-2), a value two orders of magnitude
larger than in conventional flat carbon electrodes. DLC films
grown onto single-crystal Si(100) under identical conditions
resulted in essentially insulating layers. Conducting-atomic force
microscopy studies reveal that the film electro-activity does not
arise from specific topographic features in the highly corrugated
film. The ensemble of experimental results suggests that the
enhanced electrochemical responses are not connected to areas in
which the CNT support is exposed to the electrolyte solution. This
is remarkable behaviour considering that no dopants have been
included during the DLC film growth.",
doi = "10.1016/j.carbon.2014.10.073",
url = "http://dx.doi.org/10.1016/j.carbon.2014.10.073",
issn = "0008-6223",
language = "en",
targetfile = "High surface.pdf",
urlaccessdate = "27 abr. 2024"
}