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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Journal ArticleDOI
Integrated Synthesis of Nitrogen-Doped Mesoporous Carbon from Melamine Resins with Superior Performance in Supercapacitors
Meng Li,Junmin Xue +1 more
TL;DR: In this paper, an integrated and reproducible chemical process was developed to fabricate the N-doped mesoporous carbon by using melamine resin as nitrogen source, and a two-dimensional carbon framework of graphene sheets was also used as a conductive substrate in order to boost the performance of such nitrogendoped carbon materials.
Journal ArticleDOI
Mesoporous size controllable carbon microspheres and their electrochemical performances for supercapacitor electrodes
Xiaomei Ma,Lihua Gan,Mingxian Liu,Pranav K. Tripathi,Yunhui Zhao,Zijie Xu,Dazhang Zhu,Longwu Chen +7 more
TL;DR: In this article, size controllable SiO2 nanoparticles synthesized by adjusting the hydrolysis-condensation time and the concentration of tetraethyl orthosilicate (TEOS) in ethanol-water solution in the presence of ammonia as a catalyst were encapsulated within resorcinol-formaldehyde polymer microspheres which were fabricated in the same ethanolwater-ammonia system.
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Functional Carbons Remedy the Shuttling of Polysulfides in Lithium–Sulfur Batteries: Confining, Trapping, Blocking, and Breaking up
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Cobalt-based compounds and composites as electrode materials for high-performance electrochemical capacitors
TL;DR: A review of the recent progress, achievements, weaknesses and challenges in the research of cobalt-based compounds and nanocomposites for electrochemical capacitors can be found in this paper.
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Sustainable synthesis of phosphorus- and nitrogen-co-doped porous carbons with tunable surface properties for supercapacitors
TL;DR: In this article, a simple yet efficient method to synthesize phosphorus-and nitrogen-co-doped glucose-derived microporous carbons with a simple inorganic salt (ammonium phosphate) as the single phosphorus and nitrogen source was reported.
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