Journal ArticleDOI
Carbon Materials for Chemical Capacitive Energy Storage
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
More filters
Journal ArticleDOI
Nitrogen-doped reduced graphene oxide for high-performance flexible all-solid-state micro-supercapacitors
Shuangyu Liu,Shuangyu Liu,Jian Xie,Haibo Li,Ye Wang,Hui Ying Yang,Tiejun Zhu,Shichao Zhang,Gaoshao Cao,Xinbing Zhao +9 more
TL;DR: In this article, a facile screen printing technique was used to fabricate flexible all-solid-state MSCs using N-doped reduced graphene oxide (rGO) as the electrode material.
Journal ArticleDOI
Thread‐like Supercapacitors Based on One‐Step Spun Nanocomposite Yarns
TL;DR: The supercapacitor based on these two yarns possesses a much higher specific capacitance than that based only on pure SWCNTs yarns, making it an ideal energy-storage device for wearable electronics.
Journal ArticleDOI
Conducting polymer composites: material synthesis and applications in electrochemical capacitive energy storage
TL;DR: In this paper, the authors present the approaches in the design and fabrication of conducting polymer composites as electrode materials for electrochemical capacitive energy storage, and the key issues for achieving optimized supercapacitive performances, such as fabricating nanostructured electrodes and tailoring microstructures of conducting polymers, are described and concisely discussed in this review.
Journal ArticleDOI
Precisely controlled resorcinol–formaldehyde resin coating for fabricating core–shell, hollow, and yolk–shell carbon nanostructures
Xiaoliang Fang,Liu Shengjie,Jun Zang,Chaofa Xu,Mingsen Zheng,Quanfeng Dong,Daohua Sun,Nanfeng Zheng +7 more
TL;DR: This work provides a facile one-step sol-gel route to synthesize high-quality resorcinol-formaldehyde (RF) resin coated nanocomposites that can be further used to fabricate desired carbon nanostructures that show the advantageous performances in several applications.
Journal ArticleDOI
Pine needle-derived microporous nitrogen-doped carbon frameworks exhibit high performances in electrocatalytic hydrogen evolution reaction and supercapacitors
Guoyin Zhu,Lianbo Ma,Hongling Lv,Yi Hu,Tao Chen,Renpeng Chen,Jia Liang,Xiao Wang,Yanrong Wang,Changzeng Yan,Zuoxiu Tie,Zhong Jin,Jie Liu,Jie Liu +13 more
TL;DR: This paper demonstrates an effective strategy to prepare microporous heteroatom-doped carbon frameworks derived from naturally-abundant pine needles, leading to high performances in electrocatalytic hydrogen evolution reaction (HER) and supercapacitors.
References
More filters
Journal ArticleDOI
Electric Field Effect in Atomically Thin Carbon Films
Kostya S. Novoselov,Andre K. Geim,Sergey V. Morozov,Da Jiang,Y. Zhang,S. V. Dubonos,Irina V. Grigorieva,A. A. Firsov +7 more
TL;DR: Monocrystalline graphitic films are found to be a two-dimensional semimetal with a tiny overlap between valence and conductance bands and they exhibit a strong ambipolar electric field effect.
Journal ArticleDOI
The rise of graphene
TL;DR: Owing to its unusual electronic spectrum, graphene has led to the emergence of a new paradigm of 'relativistic' condensed-matter physics, where quantum relativistic phenomena can now be mimicked and tested in table-top experiments.
Journal ArticleDOI
The electronic properties of graphene
TL;DR: In this paper, the basic theoretical aspects of graphene, a one-atom-thick allotrope of carbon, with unusual two-dimensional Dirac-like electronic excitations, are discussed.
Journal ArticleDOI
Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity (Recommendations 1984)
TL;DR: Mise au point comportant des definitions generales et la terminologie, la methodologie utilisee, les procedes experimentaux, les interpretations des donnees d'adsorption, les determinations de l'aire superficielle, and les donnes sur la mesoporosite et la microporosite.
Journal ArticleDOI
Materials for electrochemical capacitors
TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.