@Article{GravesThOlCiFeAlGo:2023:InMoRa,
author = "Graves, David A. and Theodoroviez, Lucas B and Oliveira, Thais C.
de and Cividanes, Luciana S. and Ferreira, Neiden{\^e}i Gomes and
Almeida, Dalva A. L. and Gon{\c{c}}alves, Emerson S.",
affiliation = "{Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and
{Instituto de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and
{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and
{Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
de Aeron{\'a}utica e Espa{\c{c}}o (IAE)} and {Instituto de
Aeron{\'a}utica e Espa{\c{c}}o (IAE)}",
title = "Enhanced electrochemical properties of polyaniline (PANI) films
electrodeposited on carbon fiber felt (CFF): Influence of
monomer/acid ratio and deposition time parameters in energy
storage applications",
journal = "Electrochimica Acta",
year = "2023",
volume = "454",
pages = "e142388",
month = "June",
keywords = "Carbon fiber felt, Conductive polymers, Kruskal-Wallis,
Polyaniline, Supercapacitors.",
abstract = "The growing demand for materials with high charge storage
capacity, power, and energy density, and a long-life cycle became
devices developed for the high power delivery require as
supercapacitors the subject of intense research. Conductive
polymers are a class of materials widely used in the development
of supercapacitors. In particular, PANI is a promising polymer in
electrode development due to its high specific capacitance,
conductivity, flexibility, thermal stability, and low cost. Carbon
felt fiber (CFF) is frequently used as a conductive substrate in
the development of composites due to its physicochemical
stability, good cost-benefit, and easy obtainability, being an
excellent material for the preparation of devices of different
shapes. In this work, composite electrodes were prepared by
electrodeposition of PANI on CFF substrate according to a
systematic study involving two different heat treatments, four
synthesis times, and two molar proportions with the aid of the
Kruskal-Wallis test to validate the importance of the variables
concerning the specific capacitance and the mass of PANI
deposited. The samples were characterized by physical-chemical
instrumental techniques, for characterization of the local and
crystalline structure, in addition to morphological analysis.
Finally, the composites were evaluated using electrochemical
techniques to analyze their performance in supercapacitor devices.
Based on the analyzed data, it was found that all parameters are
relevant for the optimization of the system in the preparation of
materials with greater load storage capacity. Thus, among all the
conditions, the specific capacitance that stands out the most is
that obtained by the sample CFF 2000 2:1 1350s reaching the value
of 303.76 F. g\−1.",
doi = "10.1016/j.electacta.2023.142388",
url = "http://dx.doi.org/10.1016/j.electacta.2023.142388",
issn = "0013-4686",
label = "self-archiving-INPE-MCTIC-GOV-BR",
language = "en",
targetfile = "1-s2.0-S0013468623005662-main.pdf",
urlaccessdate = "01 maio 2024"
}