%0 Journal Article
%@nexthigherunit 8JMKD3MGPCW/3ESR3H2
%3 poli_influence.pdf
%4 sid.inpe.br/mtc-m21c/2019/01.25.15.01
%8 Jan.
%9 journal article
%@issn 1432-8488
%A Poli, Anne Karoline dos Santos,
%A Hilário, Rodrigo Barbosa,
%A Gama, Adriana Medeiros,
%A Baldan, Maurício Ribeiro,
%A Gonçalves, Emerson Sarmento,
%@secondarytype PRE PI
%B Journal of Solid State Electrochemistry
%D 2019
%K Carbon fiber felt, Heat treatment, Polyaniline, Electrosynthesis, Structure, EIS.
%@archivingpolicy denypublisher denyfinaldraft12
%N 1
%P 33-52
%@secondarymark A2_MATERIAIS A2_ENGENHARIAS_II B1_QUÍMICA B1_INTERDISCIPLINAR B1_ENGENHARIAS_IV B1_ENGENHARIAS_III B1_CIÊNCIAS_BIOLÓGICAS_I B1_BIOTECNOLOGIA B1_ASTRONOMIA_/_FÍSICA
%T Influence of heat treatment temperature of carbon fiber felt substrate on polyaniline electrosynthesis and its properties
%V 23
%X Polyaniline was electrosynthesized using three voltammetric cycles on carbon fiber felts annealed at 1400, 1600, 2000, and 2300K. Felts and composites was characterized by scanning electron microscopy, X-ray diffraction, Raman and Fourier transform infrared spectroscopy, and electrochemical impedance spectroscopy. Annealing temperatures increasing provides more crystalline felts. The increase of capacitance is due to presence of functional groups that attract a lot of charge to double layer. Capacitance found for felts treated in 1400K is larger compared to felts treated in 2300K. The functional groups presence on annealed felts at lower temperature implies polyaniline growth in several orientations and regions, evidenced by the high heteroatoms ratios which decrease with increasing annealing temperature. Therefore, for higher temperatures, the polyaniline growth occurs at several additional orientations. The polyaniline oxidation degree was close to emeraldine allowing mobile charge presence. Electrochemical impedance spectroscopy confirmed that as temperature decreases, resistance of inner and outer double layer decreases. To 1600K annealing, polyaniline showed an increase in inner double layer capacitance which can be confirmed by lower ratio between bipolarons and polarons. The tendency to increase energy and power density is most prominent for polyaniline at 2300K felt.
%@area FISMAT
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress
%@electronicmailaddress mauricio.baldan@inpe.br
%@electronicmailaddress sarmgon@yahoo.com
%@documentstage not transferred
%@group
%@group
%@group
%@group LABAS-COCTE-INPE-MCTIC-GOV-BR
%@dissemination WEBSCI; PORTALCAPES.
%@orcid
%@orcid
%@orcid
%@orcid
%@orcid 0000-0002-6511-5365
%@usergroup simone
%@resumeid
%@resumeid
%@resumeid
%@resumeid 8JMKD3MGP5W/3C9JHTA
%@affiliation Instituto Tecnológico de Aeronáutica (ITA)
%@affiliation Instituto Tecnológico de Aeronáutica (ITA)
%@affiliation Instituto de Aeronáutica e Espaço (IAE)
%@affiliation Instituto Nacional de Pesquisas Espaciais (INPE)
%@affiliation Instituto Tecnológico de Aeronáutica (ITA)
%@versiontype publisher
%@holdercode {isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S}
%@doi 10.1007/s10008-018-4107-8
%2 sid.inpe.br/mtc-m21c/2019/01.25.15.01.53