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
Recent Advances in Design and Fabrication of Electrochemical Supercapacitors with High Energy Densities
TL;DR: In this paper, the authors reviewed several key issues for improving the energy densities of supercapacitors and some mutual relationships among various effecting parameters, and challenges and perspectives in this exciting field are discussed.
Journal ArticleDOI
Review on the science and technology of water desalination by capacitive deionization
TL;DR: Capacitive deionization (CDI) as mentioned in this paper is a promising technology for energy-efficient water desalination using porous carbon electrodes, which is made of porous carbons optimized for salt storage capacity and ion and electron transport.
Journal ArticleDOI
Synthesis of Nitrogen-Doped Porous Carbon Nanofibers as an Efficient Electrode Material for Supercapacitors
Li-Feng Chen,Xu-Dong Zhang,Hai-Wei Liang,Mingguang Kong,Qing-Fang Guan,Ping Chen,Zhen-Yu Wu,Shu-Hong Yu,Shu-Hong Yu +8 more
TL;DR: This work presents a high-capacity supercapacitor material based on the nitrogen-doped porous carbon nan ofibers synthesized by carbonization of macroscopic-scale carbonaceous nanofibers coated with polypyrrole (CNFs@polypyr role) at an appropriate temperature.
Journal ArticleDOI
3D carbon based nanostructures for advanced supercapacitors
TL;DR: In this article, a review of 3D carbon-based nanostructures for advanced supercapacitor applications is presented, which includes CNTs-based networks, graphene-based architectures, hierarchical porous carbon-bimodal structures, and other even more complex 3D configurations.
Journal ArticleDOI
Hierarchical Porous Nitrogen-Doped Carbon Nanosheets Derived from Silk for Ultrahigh-Capacity Battery Anodes and Supercapacitors
TL;DR: A high-performance Li-ion battery and supercapacitor were successfully assembled for the same electrode material, which was obtained through a one-step and facile large-scale synthesis route, and is promising for next-generation hybrid energy storage and renewable delivery devices.
References
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