Journal ArticleDOI
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.read more
Citations
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Facile fabrication of novel highly microporous carbons with superior size-selective adsorption and supercapacitance properties
TL;DR: The as-prepared highly microporous carbons demonstrate unusually high micropore rate, high surface area, and uniform pore size distribution, and thus exhibit excellent size-selective adsorption and electrochemical properties.
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Ordered Mesoporous Carbons with High Micropore Content and Tunable Structure Prepared by Combined Hard and Salt Templating as Electrode Materials in Electric Double-Layer Capacitors
TL;DR: In this article, a combination of hard and salt-templating is used for the synthesis of hierarchical carbon materials with combined ordered mesoporous and micropores in new supercapacitor electrodes.
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Jing Zhao,Congling Li,Rui Liu +2 more
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N-doped carbons with hierarchically micro- and mesoporous structure derived from sawdust for high performance supercapacitors
TL;DR: In this article, a new nitrogen-doping strategy was proposed to introduce nitrogen element into carbons by using ethylenediamine and carbon as nitrogen source through the polymerization reaction on sawdust under moderate conditions.
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The synthesis and electrochemical performance of core-shell structured Ni-Al layered double hydroxide/carbon nanotubes composites
Yan Wang,Zexiang Chen,Zexiang Chen,Li Hai,Jijun Zhang,Xinyu Yan,Jiang Kun,Daniel den Engelsen,Lifa Ni,Dong Xiang +9 more
TL;DR: In this article, a nano-flakes consisting of Ni-Al layered double hydroxide grown on functionalized carbon nanotube bundles by a hydrothermal method for energy storage application is reported.
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