TY - JOUR
T1 - High performance of symmetrical supercapacitor based on multilayer films of graphene oxide/polypyrrole electrodes
AU - De La Fuente Salas, Ixra Marisol
AU - Sudhakar, Y. N.
AU - Selvakumar, M.
PY - 2014/3/30
Y1 - 2014/3/30
N2 - 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.
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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U2 - 10.1016/j.apsusc.2014.01.080
DO - 10.1016/j.apsusc.2014.01.080
M3 - Article
AN - SCOPUS:84894338366
SN - 0169-4332
VL - 296
SP - 195
EP - 203
JO - Applied Surface Science
JF - Applied Surface Science
ER -