Studies on CNTs–MnO2 nanocomposite for supercapacitors

Mei-gen, Deng; Yang, Bong-Jun; Shang, Shian; Hu, Yongda

doi:10.1007/s10853-005-6523-2

Cited by 28 publications

(19 citation statements)

References 8 publications

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“…The specific capacitance calculated from the CV for the pure a-MnO 2 was 202 F/g, while for the pure SWNT it was 22 F/g. Similar results have been observed in the neutral electrolytes such as KCl, LiCl, as well for both MnO 2 and CNTs [30,39,40]. There has been little reasonable decrease in the specific capacitance values as expected when the CNT contents increased, the corresponding values for 5, 10, 20, and 40 wt % SWNTs are 195, 180, 162, and 151 F/g, respectively.…”

supporting

confidence: 82%

Nanostructured manganese oxides and their composites with carbon nanotubes as electrode materials for energy storage devices

Subramanian

Zhu

Wei

2008

Pure and Applied Chemistry

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Manganese oxides have been synthesized by a variety of techniques in different nanostructures and studied for their properties as electrode materials in two different storage applications, supercapacitors (SCs) and Li-ion batteries. The composites involving carbon nanotubes (CNTs) and manganese oxides were also prepared by a simple room-temperature method and evaluated as electrode materials in the above applications. The synthesis of nanostructured manganese oxides was carried out by simple soft chemical methods without any structure directing agents or surfactants. The prepared materials were well characterized using different analytical techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), surface area studies, etc. The electrochemical properties of the nanostructured manganese oxides and their composites were studied using cyclic voltammetry (CV), galvanostatic charge-discharge, and electrochemical impedance spectroscopic (EIS) studies. The influence of structural/surface properties on the electrochemical performance of the synthesized manganese oxides is reviewed.

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supporting

confidence: 82%

Nanostructured manganese oxides and their composites with carbon nanotubes as electrode materials for energy storage devices

Subramanian

Zhu

Wei

2008

Pure and Applied Chemistry

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“…the electrochemical stability of transition metal oxides makes them a better choice, provided they are highly conducting. A wide range of oxides has been investigated for use in CNT hybrids, including NiO [171,232,233], MnO 2 [234][235][236][237], V 2 O 5 [238,239], and RuO 2 [169,192,194]. In all of these studies, the synergistic effects of CNT oxide hybrids have shown a considerable improvement of the otherwise poor electric properties and deficient charge transfer channels of the pure oxide.…”

Section: Supercapacitors and Batteriesmentioning

confidence: 99%

Carbon Nanotubes and Carbon Nanotubes/Metal Oxide Heterostructures: Synthesis, Characterization and Electrochemical Property

Hu¹,

Guo²

2011

Carbon Nanotubes - Growth and Applications

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“…A variety of materials and fabrication processes have been developed to construct the EDLCs. Carbon‐based materials such as carbon nanotubes (CNT) , graphene , and activated carbon have been studied for electrode fabrication. Activated carbon‐based super‐capacitors have been most developed because of their low fabrication cost, large capacitance, and long cycle time .…”

Section: Introductionmentioning

confidence: 99%

Thin Film Energy Storage Device with Spray-Coated Sliver Paste Current Collector

Yoon¹,

Jang²,

Jo³

et al. 2017

ETRI Journal

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This paper challenges the fabrication of a thin film energy storage device on a flexible polymer substrate specifically by replacing most commonly used metal foil current collectors with coated current collectors. Mass-manufacturable spray-coating technology enables the fabrication of two different half-cell electric double layer capacitors (EDLC) with a spray-coated silver paste current collector and a Ni foil current collector. The larger specific capacitances of the halfcell EDLC with the spray-coated silver current collector are obtained as 103.86 F/g and 76.8 F/g for scan rates of 10 mV/s and 500 mV/s, respectively. Further, even though the half-cell EDLC with the spray-coated current collector is heavier than that with the Ni foil current collector, smaller Warburg impedance and contact resistance are characterized from Nyquist plots. For the applied voltages ranging from À0.5 V to 0.5 V, the spray-coated thin film energy storage device exhibits a better performance.

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Studies on CNTs–MnO2 nanocomposite for supercapacitors

Cited by 28 publications

References 8 publications

Nanostructured manganese oxides and their composites with carbon nanotubes as electrode materials for energy storage devices

Nanostructured manganese oxides and their composites with carbon nanotubes as electrode materials for energy storage devices

Carbon Nanotubes and Carbon Nanotubes/Metal Oxide Heterostructures: Synthesis, Characterization and Electrochemical Property

Thin Film Energy Storage Device with Spray-Coated Sliver Paste Current Collector

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