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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Electrospun MXene/carbon nanofibers as supercapacitor electrodes
Ariana Levitt,Mohamed Alhabeb,Christine B. Hatter,Asia Sarycheva,Genevieve Dion,Yury Gogotsi +5 more
TL;DR: In this article, MXene flakes are added into PAN solutions at a weight ratio of 2':'1 (MXene' :'PAN) in the spinning dope, producing fiber mats with up to 35 wt% MXene.
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Sustainable nitrogen-doped porous carbon with high surface areas prepared from gelatin for supercapacitors
TL;DR: Gelatin, a renewable animal derivative composed of various proteins, was used as a precursor for nitrogen-doped porous carbon with high surface areas for supercapacitors for the first time as discussed by the authors.
Journal ArticleDOI
Mesoporous NiCo2S4 nanoparticles as high-performance electrode materials for supercapacitors
TL;DR: In this article, mesoporous NiCo 2 S 4 nanoparticles were used as a supercapacitor electrode material to achieve high specific capacitance (1440 F g −1 at 3 ǫg −1 ) after 250 cycles, exceptional rate capability (75.1% capacity retention from 2 to 50 g − 1 ) and cycling stability (107.9% of initial capacity retention for 1000 cycles).
Journal ArticleDOI
Large-pore ordered mesoporous materials templated from non-Pluronic amphiphilic block copolymers
TL;DR: Recently developed synthetic methods and strategies for ordered mesoporous silicas, metal oxides, carbons and metals which have shown superior performances for applications in various fields, including solar cells, batteries, fuel cells, and sensors are summarized.
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Fast and Large Lithium Storage in 3D Porous VN Nanowires–Graphene Composite as a Superior Anode Toward High‐Performance Hybrid Supercapacitors
TL;DR: Li-ion hybrid capacitors (LIHCs) are attracting significant attention due to the good combination with the advantages of conventional Li-ion batteries and supercapacitors as discussed by the authors.
References
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