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Carbon Materials for Chemical Capacitive Energy Storage

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TLDR
In order to further improve the power and energy densities of the capacitors, carbon-based composites combining electrical double layer capacitors (EDLC)-capacitance and pseudo-Capacitance have been explored and show not only enhanced capacitance, but as well good cyclability.
Abstract
Carbon materials have attracted intense interests as electrode materials for electrochemical capacitors, because of their high surface area, electrical conductivity, chemical stability and low cost. Activated carbons produced by different activation processes from various precursors are the most widely used electrodes. Recently, with the rapid growth of nanotechnology, nanostructured electrode materials, such as carbon nanotubes and template-synthesized porous carbons have been developed. Their unique electrical properties and well controlled pore sizes and structures facilitate fast ion and electron transportation. In order to further improve the power and energy densities of the capacitors, carbon-based composites combining electrical double layer capacitors (EDLC)-capacitance and pseudo-capacitance have been explored. They show not only enhanced capacitance, but as well good cyclability. In this review, recent progresses on carbon-based electrode materials are summarized, including activated carbons, carbon nanotubes, and template-synthesized porous carbons, in particular mesoporous carbons. Their advantages and disadvantages as electrochemical capacitors are discussed. At the end of this review, the future trends of electrochemical capacitors with high energy and power are proposed.

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Citations
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Hierarchical porous carbons prepared from direct coal liquefaction residue and coal for supercapacitor electrodes

TL;DR: In this article, hierarchical porous carbons were prepared from a coal liquefaction residue (CLR) and two coals, Shenhua coal with low and Shengli coal with high ash content, by KOH activation with the addition of some additives, and used as the electrode for supercapacitors.
Journal ArticleDOI

Hierarchically structured porous materials: synthesis strategies and applications in energy storage

TL;DR: This review takes the characteristic parameters of the hierarchical pores as the survey object to summarize the recent progress on hierarchically structured porous materials for energy storage and hopes that this review can stimulate strong intuition into the design and application of new hierarchically Structured porous materials in energystorage and other fields.
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Phosphorus-doped carbon–carbon nanotube hierarchical monoliths as true three-dimensional electrodes in supercapacitor cells

TL;DR: In this paper, P-toluenesulfonic acid (pTsOH·H2O) and triethyl phosphate (TEP) were used as the medium to disperse previously functionalized multiwalled carbon nanotubes (MWCNTs), and to catalyse the polycondensation of furfuryl alcohol.
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Gelatin-derived nitrogen-doped porous carbon via a dual-template carbonization method for high performance supercapacitors

TL;DR: In this paper, a dual-template carbonization method was used to obtain high performance nitrogen-doped porous carbon for supercapacitors, named as Gelatin-Mg-Zn-1.
Journal ArticleDOI

Aptamer-functionalized carbon nanomaterials electrochemical sensors for detecting cancer relevant biomolecules

TL;DR: In this paper, the authors reviewed the recent progress of electrochemical sensors based on carbon nanomaterials and proposed the future developments as well as the issues and challenges of the fabrication of carbon-nanomaterial-based nucleic acid aptamer functionalized electrochemical biosensors.
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Materials for electrochemical capacitors

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