High performance of symmetrical supercapacitor based on multilayer films of graphene oxide/polypyrrole electrodes

Ixra Marisol De La Fuente Salas, Y. N. Sudhakar, M. Selvakumar

Research output: Contribution to journalArticle

47 Citations (Scopus)

Abstract

In this work we have deposited multlilayer films of polypyrrole (PPy) by galvanostatic method with three different dopants namely p-toluenesulphonic acid, benzene sulphonic acid, and sulfuric acid ions on graphene oxide (GO) layer. The better deposition of PPy films on GO is addressed by studying the influence of different electrolytes, concentrations and current densities. The multilayer films of GO/PPy exhibits greater capacitance compared to GO/PPy single layer. The morphology of the graphene oxide (GO)/multilayer nano PPy structures is carefully analyzed by scanning electron microscopy, FTIR and XPS spectrum. Specific capacitance of fabricated supercapacitor using multilayer electrodes is as high as 332 F g-1 at 10 mV s-1 and also compared with another supercapacitor made from single GO/PPy layer whose capacitance is 215 F g-1. Galvanostatic charge-discharge studies show good performance and stability.

Original languageEnglish
Pages (from-to)195-203
Number of pages9
JournalApplied Surface Science
Volume296
DOIs
Publication statusPublished - 30-03-2014

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Graphite
Multilayer films
Polypyrroles
Oxides
Graphene
Electrodes
Capacitance
Multilayers
Sulfonic Acids
Acids
Benzene
Sulfuric acid
Electrolytes
Supercapacitor
polypyrrole
Current density
X ray photoelectron spectroscopy
Doping (additives)
Ions
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Surfaces, Coatings and Films

Cite this

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abstract = "In this work we have deposited multlilayer films of polypyrrole (PPy) by galvanostatic method with three different dopants namely p-toluenesulphonic acid, benzene sulphonic acid, and sulfuric acid ions on graphene oxide (GO) layer. The better deposition of PPy films on GO is addressed by studying the influence of different electrolytes, concentrations and current densities. The multilayer films of GO/PPy exhibits greater capacitance compared to GO/PPy single layer. The morphology of the graphene oxide (GO)/multilayer nano PPy structures is carefully analyzed by scanning electron microscopy, FTIR and XPS spectrum. Specific capacitance of fabricated supercapacitor using multilayer electrodes is as high as 332 F g-1 at 10 mV s-1 and also compared with another supercapacitor made from single GO/PPy layer whose capacitance is 215 F g-1. Galvanostatic charge-discharge studies show good performance and stability.",
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High performance of symmetrical supercapacitor based on multilayer films of graphene oxide/polypyrrole electrodes. / De La Fuente Salas, Ixra Marisol; Sudhakar, Y. N.; Selvakumar, M.

In: Applied Surface Science, Vol. 296, 30.03.2014, p. 195-203.

Research output: Contribution to journalArticle

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AU - De La Fuente Salas, Ixra Marisol

AU - Sudhakar, Y. N.

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AB - In this work we have deposited multlilayer films of polypyrrole (PPy) by galvanostatic method with three different dopants namely p-toluenesulphonic acid, benzene sulphonic acid, and sulfuric acid ions on graphene oxide (GO) layer. The better deposition of PPy films on GO is addressed by studying the influence of different electrolytes, concentrations and current densities. The multilayer films of GO/PPy exhibits greater capacitance compared to GO/PPy single layer. The morphology of the graphene oxide (GO)/multilayer nano PPy structures is carefully analyzed by scanning electron microscopy, FTIR and XPS spectrum. Specific capacitance of fabricated supercapacitor using multilayer electrodes is as high as 332 F g-1 at 10 mV s-1 and also compared with another supercapacitor made from single GO/PPy layer whose capacitance is 215 F g-1. Galvanostatic charge-discharge studies show good performance and stability.

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