Electrodeposited hybrid films of polyaniline and manganese oxide in nanofibrous structures for electrochemical supercapacitor

Sun, Lijie; Liu, Xiao Xia; Lau, Kim; Chen, Liang; Wei-min, GU

doi:10.1016/j.electacta.2007.11.034

Cited by 99 publications

(47 citation statements)

References 20 publications

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“…One-dimensional growth control of PANI has aroused great interest because an ordered arrangement of the polymer chains favors higher conductivity and better performance in applications involving gas-sensing, energy storage, etc. ; the improved performance of ordered polymer chains arises from easy diffusion of guest species into and out of the polymer to get good contact with the active sites on the polymer [1][2][3][4]. Nanofibrous PANI can be synthesized using hard or soft templates or through electrospinning [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

One-dimensional growth and electrochemical properties of polyaniline deposited by a pulse potentiostatic method

Jiang

Liu

2010

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

One-dimensional growth and electrochemical properties of polyaniline deposited by a pulse potentiostatic method

Jiang

Liu

2010

Electrochimica Acta

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“…Recently, we have demonstrated that it is feasible to form electroactive PAni in aqueous solutions of pH 2 to 12 [14]. PAni-SiO 2 and PAni-MnO x composites 3 were hence obtained [15,16]. Nickel oxide was reported to be electrodeposited either at a fixed potential between 0.7 and 1.2 V or by dynamic potential cycling in the potential range of 0  1.2 V vs. SCE from Ni 2+ in neutral to weak basic solutions [1722].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical codeposition of nickel oxide and polyaniline

Xiao

Liu

Hua

et al. 2009

J Solid State Electrochem

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The morphologies and elemental components of the films were inspected by Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray Diffraction (EDX). The stability of nickel oxide in the films was found to be enhanced against acidic environments. Electrochemical catalytic behavior of NiO x within the composite film was conserved and demonstrated by catalytic oxidation of methanol and ethanol.

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“…The potential window of PM4 is enlarged to 0.9 V compared with those of PANI/MnO x nanofibre (0.65 V) [21][22][23]. Furthermore, PM4 possesses high specific capacitance due to the 3D nanostructured porous microsphere nature.…”

Section: Resultsmentioning

confidence: 95%

“…It has been widely used as supercapacitance material [19,20]. The combination of MnO 2 and PANI must benefit the capacitive performance of both of them due to their synergistic effect [21][22][23]. The main shortcoming of PANI application as supercapacitor electrodes is the poor cycling stability derived from the volumetric changes during the doping/dedoping process [24].…”

Section: Introductionmentioning

confidence: 99%

A three-dimensional nanostructured PANI/MnO x porous microsphere and its capacitive performance

et al. 2012

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Three-dimensional nanostructured polyaniline (PANI) and manganese oxide (MnO x ) composite porous microspheres were prepared by oxidizing aniline with KMnO 4 under interfacial chemical synthesis with 4-aminothiophenol (4-ATP) as the structure-directing agent on the Au substrate. Surface morphology and chemical composition of PANI/MnO x microsphere were characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, thermo gravimetric-differential thermal analysis, and Fourier transform infrared spectrum. The result displayed that concentration of KMnO 4 played a key role in forming the 3D nanostructured porous microspheres. To obtain the regular shapes and uniform sizes of the porous microspheres, the optimal concentration of oxidant was 0.15 mol L -1 . The electrochemistry performances of PANI/MnO x microsphere were determined by cyclic voltammograms, electrochemical impedance spectroscopy, and galvanostatic charge-discharge. The specific capacitance of the 3D nanostructured PANI-MnO x porous microspheres exhibited a maximum value of 828 F g -1 at current density of 2 mA cm -2 over a potential range of 0.0-0.9 V versus SCE. It has improved 365 and 88 % comparing with that of PANI (178 F g -1 ) and MnO x (440 F g -1 ) obtained at the similar condition. The chargedischarge tests showed the PANI/MnO x microsphere possessed a good cycling stability. It maintained about 84.2 % of the initial capacitance after 1000 cycles at a current density of 2.0 mA cm -2 .

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Electrodeposited hybrid films of polyaniline and manganese oxide in nanofibrous structures for electrochemical supercapacitor

Cited by 99 publications

References 20 publications

One-dimensional growth and electrochemical properties of polyaniline deposited by a pulse potentiostatic method

One-dimensional growth and electrochemical properties of polyaniline deposited by a pulse potentiostatic method

Electrochemical codeposition of nickel oxide and polyaniline

A three-dimensional nanostructured PANI/MnO x porous microsphere and its capacitive performance

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