Electrochemical behavior and structure evolution of polyaniline/carbon composites in ionic liquid electrolyte

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Electrochemical behavior and structure evolution of polyaniline/carbon composites in ionic liquid electrolyte. / Lebedeva, Marina V.; Gribov, Evgenii N.

In: Journal of Solid State Electrochemistry, Vol. 24, No. 3, 01.03.2020, p. 739-751.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{417f51ade7754ff8b48e6b7e28a2b2dd,

title = "Electrochemical behavior and structure evolution of polyaniline/carbon composites in ionic liquid electrolyte",

abstract = "Polyaniline/carbon (Pani/C) composites were synthesized by oxidative polymerization of aniline in the presence of carbon material at different pH values. Composites obtained possess identical composition (56 wt% of polymer as determined by CHNS elemental analysis) but differ in morphology and porous structure. Biomass-derived activated carbon having specific surface area of 1740 m2 g−1 was used as carbon component. Porous structure was characterized by low-temperature nitrogen adsorption at 77 K. The electrochemical behavior of the samples was investigated by cyclic voltammetry in a three-electrode cell in different electrolytes: aqueous 1 M H2SO4 and 1 M solution of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) in acetonitrile (ILE). Based on cyclic voltammetry data mechanism of polyaniline transformations in ILE involving BMIM+ as a proton source was proposed. Symmetric supercapacitors (SC) were assembled with Pani/C electrodes and ILE. Study of SC by the set of electrochemical techniques and investigation of the electrode structure prior and after stability tests performed by Fourier transform infrared spectroscopy allowed to reveal the main regularities of SC performance and evolution of material properties.",

keywords = "Activated carbon, BMIMBF, Electrochemical impedance spectroscopy, FTIR-spectroscopy, Polyaniline, Supercapacitor, CARBON, SURFACE-AREA, PERFORMANCE, ANILINE, BMIMBF4, LEUCOEMERALDINE, CAPACITANCE, NANOCOMPOSITES, DEGRADATION, NANOTUBES, OXIDATIVE POLYMERIZATION",

author = "Lebedeva, {Marina V.} and Gribov, {Evgenii N.}",

year = "2020",

month = mar,

day = "1",

doi = "10.1007/s10008-020-04516-2",

language = "English",

volume = "24",

pages = "739--751",

journal = "Journal of Solid State Electrochemistry",

issn = "1432-8488",

publisher = "Springer-Verlag GmbH and Co. KG",

number = "3",

}

RIS

TY - JOUR

T1 - Electrochemical behavior and structure evolution of polyaniline/carbon composites in ionic liquid electrolyte

AU - Lebedeva, Marina V.

AU - Gribov, Evgenii N.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - Polyaniline/carbon (Pani/C) composites were synthesized by oxidative polymerization of aniline in the presence of carbon material at different pH values. Composites obtained possess identical composition (56 wt% of polymer as determined by CHNS elemental analysis) but differ in morphology and porous structure. Biomass-derived activated carbon having specific surface area of 1740 m2 g−1 was used as carbon component. Porous structure was characterized by low-temperature nitrogen adsorption at 77 K. The electrochemical behavior of the samples was investigated by cyclic voltammetry in a three-electrode cell in different electrolytes: aqueous 1 M H2SO4 and 1 M solution of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) in acetonitrile (ILE). Based on cyclic voltammetry data mechanism of polyaniline transformations in ILE involving BMIM+ as a proton source was proposed. Symmetric supercapacitors (SC) were assembled with Pani/C electrodes and ILE. Study of SC by the set of electrochemical techniques and investigation of the electrode structure prior and after stability tests performed by Fourier transform infrared spectroscopy allowed to reveal the main regularities of SC performance and evolution of material properties.

AB - Polyaniline/carbon (Pani/C) composites were synthesized by oxidative polymerization of aniline in the presence of carbon material at different pH values. Composites obtained possess identical composition (56 wt% of polymer as determined by CHNS elemental analysis) but differ in morphology and porous structure. Biomass-derived activated carbon having specific surface area of 1740 m2 g−1 was used as carbon component. Porous structure was characterized by low-temperature nitrogen adsorption at 77 K. The electrochemical behavior of the samples was investigated by cyclic voltammetry in a three-electrode cell in different electrolytes: aqueous 1 M H2SO4 and 1 M solution of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIMBF4) in acetonitrile (ILE). Based on cyclic voltammetry data mechanism of polyaniline transformations in ILE involving BMIM+ as a proton source was proposed. Symmetric supercapacitors (SC) were assembled with Pani/C electrodes and ILE. Study of SC by the set of electrochemical techniques and investigation of the electrode structure prior and after stability tests performed by Fourier transform infrared spectroscopy allowed to reveal the main regularities of SC performance and evolution of material properties.

KW - Activated carbon

KW - BMIMBF

KW - Electrochemical impedance spectroscopy

KW - FTIR-spectroscopy

KW - Polyaniline

KW - Supercapacitor

KW - CARBON

KW - SURFACE-AREA

KW - PERFORMANCE

KW - ANILINE

KW - BMIMBF4

KW - LEUCOEMERALDINE

KW - CAPACITANCE

KW - NANOCOMPOSITES

KW - DEGRADATION

KW - NANOTUBES

KW - OXIDATIVE POLYMERIZATION

UR - http://www.scopus.com/inward/record.url?scp=85079715847&partnerID=8YFLogxK

U2 - 10.1007/s10008-020-04516-2

DO - 10.1007/s10008-020-04516-2

M3 - Article

AN - SCOPUS:85079715847

VL - 24

SP - 739

EP - 751

JO - Journal of Solid State Electrochemistry

JF - Journal of Solid State Electrochemistry

SN - 1432-8488

IS - 3

ER -

ID: 23595337