@Article{SilvaPiRoBaTrCo:2018:GrShPr,
author = "Silva, Amanda Ara{\'u}jo and Pinheiro, Rom{\'a}rio Ara{\'u}jo
and Rodrigues, Aline Castilho and Baldan, Maur{\'{\i}}cio
Ribeiro and Trava-Airoldi, Vladimir Jesus and Corat, Evaldo
Jos{\'e}",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "Graphene sheets produced by carbon nanotubes unzipping and their
performance as supercapacitor",
journal = "Applied Surface Science",
year = "2018",
volume = "446",
number = "esp.",
pages = "201--208",
month = "July",
keywords = "Graphene, Unzipped carbon nanotubes, Micro-wave chemical vapor
deposition.",
abstract = "Carbon nanotubes (CNTs) are well known by their unique properties,
such as high electrical conductivity and chemical stability, which
can improve charge transfer, facilitating double layer charging in
supercapacitor devices. In this work we report on a simple method
to unzip CNTs, producing graphene sheets. The amount of hydrogen
atoms in the nanotubes synthesis by micro-wave chemical vapor
deposition is a critical parameter for unzipping process. High
crystalline quality graphene sheets are obtained by this method
because of the sp(2) bonds sensibility to hydrogen ions
reactivity. Unzipped CNTs provided higher capacitance values
without an increase in pseudocapacitance. The resulting structure
presented an increase in double-layer charging, suggesting a
material with good electron transfer rate. This new synthesis
method is promising for obtainment of graphene sheets from carbon
nanotubes. Besides, unzipped carbon nanotubes presented themselves
to be a good alternative for supercapacitors electrodes
material.",
doi = "10.1016/j.apsusc.2018.01.214",
url = "http://dx.doi.org/10.1016/j.apsusc.2018.01.214",
issn = "0169-4332",
language = "en",
targetfile = "silva_graphene.pdf",
urlaccessdate = "27 abr. 2024"
}