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
Leaf-inspired interwoven carbon nanosheet/nanotube homostructures for supercapacitors with high energy and power densities
Siliang Liu,Jingsan Xu,Jixin Zhu,Yuanqin Chang,Haige Wang,Liu Zhichong,Yang Xu,Chao Zhang,Tianxi Liu +8 more
TL;DR: In this article, an environmentally friendly one-pot strategy for the synthesis of interwoven carbon nanotube (CNT)/carbon nanosheet (CNS) sandwiches in a molten salt was reported.
Journal ArticleDOI
Scalable fabrication of exceptional 3D carbon networks for supercapacitors
Kuo Song,Wei-Li Song,Li-Zhen Fan +2 more
TL;DR: In this article, a facile and exclusive approach is presented toward the scalable preparation of novel 3D porous carbon networks using relatively low-cost commercial cotton, which can be directly utilized in flexible all-solid-state supercapacitors, which exhibit considerably satisfactory energy storage performance and excellent cycling stability.
Journal ArticleDOI
Blue energy harvesting on nanostructured carbon materials
TL;DR: In this article, the authors focus on the concept of harvesting energy from water-carbon interfaces and summarize the materials, structural design and electricity harvesting mechanism of devices, and discuss three promising mechanisms of nanogenerators, namely, sliding droplets, flowing water and phase change processes.
Journal ArticleDOI
Synthesis of honeycomb MnO 2 nanospheres/carbon nanoparticles/graphene composites as electrode materials for supercapacitors
TL;DR: In this article, a novel honeycomb MnO 2 nanospheres/carbon nanoparticles/graphene composites has been fabricated through freeze-drying method, and the honeycomb NMO 2 nanopheres are well inserted and dispersed on the graphene.
Journal ArticleDOI
Homogenous incorporation of SnO2 nanoparticles in carbon cryogels via the thermal decomposition of stannous sulfate and their enhanced lithium-ion intercalation properties
Ming Zhang,Ming Zhang,Yanwei Li,Evan Uchaker,Stephanie L. Candelaria,Laifa Shen,Taihong Wang,Guozhong Cao +7 more
TL;DR: An impregnation-calcination method based on the thermal decomposition of stannous sulfate is developed to prepare carbon cryogel-tin oxide nanocomposites with less impurity for anode materials of lithium-ion batteries as discussed by the authors.
References
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