Electrochemical Synthesis of an Organometallic Material Based on Polypyrrole/MnO2 as High-Performance Cathode

Electrochemical Synthesis of an Organometallic Material Based on Polypyrrole/MnO2 as High-Performance Cathode

We report herein the design of promising composite material as a cathode in a rechargeable battery by combining the properties of polypyrrole (PPy) and MnO 2 particles. The composites were prepared by electropolymerization of the pyrrole monomer followed by electrodeposition of a manganese salt susp...

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Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials Vol. 31; no. 1; pp. 62 - 69
Main Authors: Rakhrour, Waffa, Selloum, Djamel, Henni, Abdellah, Cherrad, Noureddine, Chikouche, Imene, Benalia, Mokhtar, Mouffok, Sarra, Djedid, Mabrouk, Bouzar, Nacira, Tingry, Sophie
Format: Journal Article
Language:English
Published: New York Springer US 2021
Springer Nature B.V
Springer Verlag (Germany)
Subjects:
Cathodes
Charge transfer
Chemical Sciences
Chemical synthesis
Chemistry
Chemistry and Materials Science
Composite materials
Electrochemical analysis
Electrodes
Fourier transforms
Inorganic Chemistry
Manganese dioxide
Manganese ions
Morphology
Organic Chemistry
Oxygen reduction reactions
Particulate composites
Polymer films
Polymer Sciences
Polymerization
Polymers
Polypyrroles
Rechargeable batteries
Manganese dioxide
Oxygen reduction
Electrodeposition
Composite electrodes
Polypyrrol
polypyrrol
composite electrodes
electrodeposition
manganese dioxide
oxygen reduction
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Summary:We report herein the design of promising composite material as a cathode in a rechargeable battery by combining the properties of polypyrrole (PPy) and MnO 2 particles. The composites were prepared by electropolymerization of the pyrrole monomer followed by electrodeposition of a manganese salt suspension by two methods. The first method involved the formation of MnO 2 in situ in the PPy/ITO electrode, while the second method involved first a preliminary adsorption of Mn 2+ ions in the polymer, followed by an electrochemical of the electrode. The morphology of the resulting composite materials (PPy/MnO 2 ) was studied by energy-dispersive X-ray spectroscopy (EDS), X-ray diffractometry (XRD), scanning electron microscopy (SEM), Fourier-transform infrared (FTIR). The investigations of the electrochemical properties of the composite electrodes show that the presence of MnO 2 play an important role in improving the surface of polymer films, which leads to lower charge transfer resistance and higher electrode activity. For the optimal synthesis method, the electrode generates a maximum current of up to − 7.9 mA cm −2 for the oxygen reduction reaction, which is eight times the current density delivered by the electrode without PPy.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-020-01664-w