Electrosynthesis of a ternary composite film polyaniline-MnO2-graphene in a one-step

In the present work, it has been directly prepared the polyaniline-MnO 2 -grapheneternary composite film onto fluorine-doped tin oxide glass substrate (FTO/PANI-MnO 2 -GR). The film in question were obtained through electropolymerization of aniline with manganese dioxide electrodeposition, both occu...

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Bibliographic Details
Published in:Ionics 2022, Vol.28 (1), p.317-328
Main Authors: Tounsi, Assia, Habelhames, Farid, Sayah, Abdelfetteh, Bahloul, Ahmed, Lamiri, Leila, Nessark, Belkacem
Format: Article
Language:English
Subjects:
Aniline
Capacitance
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Dispersion
Electrochemistry
Electrode materials
Electrolytes
Energy Storage
Fluorine
Glass substrates
Graphene
Manganese dioxide
Optical and Electronic Materials
Original Paper
Polyanilines
Polymerization
Renewable and Green Energy
Sheets
Sulfuric acid
Tin oxides
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Summary:In the present work, it has been directly prepared the polyaniline-MnO 2 -grapheneternary composite film onto fluorine-doped tin oxide glass substrate (FTO/PANI-MnO 2 -GR). The film in question were obtained through electropolymerization of aniline with manganese dioxide electrodeposition, both occurring at once under the same imposed potential 1.2 V vs. SCE. The electropolymerization process is first performed with the presence of dispersed graphene (2 mg) in 0.1 M aniline, 25 mM, or 75 mM of manganese sulfate, 0.1 M Na 2 SO 4 , and 1 M H 2 SO 4 electrolyte solution. The carried out work primarily aims to build a new ternary composite film in directly combining mono dimensional coated MnO 2 conducting polyaniline PANI with bi-dimensional graphene sheets. The targeted work is plainly justified by the fact that ternary composites compared to individual components such as supercapacitor electrode materials are endowed with much more high electrochemical capacitance. The process is separately conducted without and with dispersed graphene and its electrolyte solution. The electrochemically synthesized graphene sheets are incorporated under low agitation. The specific capacitance is computed by mean of cyclic voltammetry (CV) technic under 5 m Vs −1 outcomes 107.29 F g −1 for FTO/PANI that rises to 249.03 F g −1 for the ternary composite film FTO/PANI-MnO 2 75-GR.
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-021-04316-2