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
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Journal ArticleDOI
Identify the Removable Substructure in Carbon Activation
Zhenyu Xing,Yitong Qi,Ziqi Tian,Jing Xu,Yifei Yuan,Clement Bommier,Jun Lu,Wei Tong,De-en Jiang,Xiulei Ji +9 more
TL;DR: In this paper, the first structure-activation correlation elucidated on the basis of unprecedented comprehensive characterization on carbon activation is reported, which leads to an activation-based design principle of mesoporous carbon.
Journal ArticleDOI
Biomass-Derived Carbon: A Value-Added Journey Towards Constructing High-Energy Supercapacitors in an Asymmetric Fashion.
TL;DR: The present review briefly answers the need of biomass-derived carbons for ASC, comprehensively categorizes the SCs with their historical background and elucidates theSCs mechanism attractively.
Journal ArticleDOI
Synthesis of hierarchical carbon sphere@NiMoO4 composite materials for supercapacitor electrodes
TL;DR: In this article, a hierarchical Carbon sphere@NiMoO 4 composite was successfully synthesized by cost-effective two-step hydrothermal method, which exhibited good specific capacitance (Csp) of 268.8 F g −1 at a current density of 1 A −1 in 2 M NaOH aqueous electrolyte solution, as well as good cycling stability.
Journal ArticleDOI
Nitrogen- and oxygen-containing activated carbons from sucrose for electrochemical supercapacitor applications
TL;DR: In this article, Nitrogen and oxygen-containing activated carbons have been synthesized from sucrose and ammonium nitrate (AN) by carbonization at different temperatures (600-900 °C) under a flow of nitrogen gas with steam.
Journal ArticleDOI
Flower-like ZnO@MnCo2O4 nanosheet structures on nickel foam as novel electrode material for high-performance supercapacitors
Chandu V. V. Muralee Gopi,Mallineni Venkata-Haritha,Soo-Kyoung Kim,Kandasamy Prabakar,Hee-Je Kim +4 more
TL;DR: Hierarchical ZnO@MnCo2O4 nanosheets were synthesized on nickel foam using a facile and cost-effective hydrothermal approach combined with a short post-annealing treatment.
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