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
All-biomaterial supercapacitor derived from bacterial cellulose
Xiangjun Wang,Debin Kong,Yunbo Zhang,Bin Wang,Xianglong Li,Tengfei Qiu,Qi Song,Jing Ning,Yan Song,Linjie Zhi +9 more
TL;DR: An all-biomaterial originated film supercapacitor has been successfully fabricated for the first time based on a unique three-dimensional bacterial cellulose (BC) derived electrode and a novel BC-based gel electrolyte.
Journal ArticleDOI
Nanostructured core-shell electrode materials for electrochemical capacitors
TL;DR: In this paper, the authors summarize recent progress on core-shell nanostructures for advanced supercapacitor applications in view of their hierarchical architecture which not only create the desired hierarchical porous channels, but also possess higher electrical conductivity and better structural mechanical stability.
Journal ArticleDOI
Hydrothermal synthesis of ordered mesoporous carbons from a biomass-derived precursor for electrochemical capacitors
TL;DR: The reproducible synthesis of highly ordered mesoporous carbons (OMCs) with a 2D hexagonal mesostructure via a facile hydrothermal method employing β-cyclodextrin as a renewable and environmentally-friendly carbon precursor gives the OMCs a high surface area and micropore surface areas, as well as an oxygenated surface.
Journal ArticleDOI
Transition metal oxide and graphene nanocomposites for high-performance electrochemical capacitors
Weifeng Zhang,Fu Liu,Qianqian Li,Qingliang Shou,Jipeng Cheng,Li Zhang,Bradley J. Nelson,Xiaobin Zhang +7 more
TL;DR: The excellent electrochemical performance of the A(3)O(4)-graphene nanocomposites indicates great potential in the application in commercial supercapacitors.
Journal ArticleDOI
Morphology‐Conserved Transformations of Metal‐Based Precursors to Hierarchically Porous Micro‐/Nanostructures for Electrochemical Energy Conversion and Storage
Min Chen,Yueguang Zhang,Yueguang Zhang,Lidan Xing,Youhao Liao,Youhao Liao,Yongcai Qiu,Shihe Yang,Weishan Li +8 more
TL;DR: Hierarchically porous micro-/nanostructures produced by morphology-conserved transformations of metal-based precursors are summarized, and their applications as electrodes and/or catalysts in rechargeable batteries, supercapacitors, and solar cells are discussed.
References
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Materials for electrochemical capacitors
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