Journal ArticleDOI
Carbon Materials for Chemical Capacitive Energy Storage
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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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Ionic Liquids as Environmentally Benign Electrolytes for High-Performance Supercapacitors.
Suniya Shahzad,Afzal Shah,Afzal Shah,Elaheh Kowsari,Faiza Jan Iftikhar,Anum Nawab,Benoît Piro,Mohammad Salim Akhter,Usman Ali Rana,Zou Yongjin +9 more
TL;DR: The importance of ILs as sustainable and high‐performance electrolytes for electrochemical capacitors is highlighted, as this novel versatile electrolyte media is associated with high thermal stability, excellent ionic conductivity, and the capability to withstand high voltages without undergoing decomposition.
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Hydrothermal synthesis of reduced graphene oxide-modified NiCo2O4 nanowire arrays with enhanced reactivity for supercapacitors
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Journal ArticleDOI
High‐Performance Hybrid Supercapacitor Based on Graphene‐Wrapped Mesoporous T‐Nb2O5 Nanospheres Anode and Mesoporous Carbon‐Coated Graphene Cathode
Guoqiang Ma,Ke Li,Yuanyuan Li,Biao Gao,Tianpeng Ding,Qize Zhong,Jun Su,Li Gong,Jian Chen,Longyan Yuan,Bin Hu,Jun Zhou,Kaifu Huo +12 more
TL;DR: In this paper, reduced graphene oxide (rGO) cross-linked mesoporous T-Nb2O5 nanospheres were used as high performance Li+ intercalation pseudocapacitive material.
Journal ArticleDOI
Biomass derived phosphorous containing porous carbon material for hydrogen storage and high-performance supercapacitor applications
Arjunan Ariharan,K. P. Ramesh,R. Vinayagamoorthi,R. Vinayagamoorthi,M. Sandhya Rani,Balasubramanian Viswanathan,Sundara Ramaprabhu,Vaiyapuri Nandhakumar +7 more
TL;DR: In this paper, a facile method of self-phosphorous doped porous carbon by a simple carbonization route (without using any activation process) under argon gas atmosphere was reported.
Journal ArticleDOI
Significantly increasing porosity of mesoporous carbon by NaNH2 activation for enhanced CO2 adsorption
Kuan Huang,Song-Hai Chai,Richard T. Mayes,Shuai Tan,Christopher W. Jones,Sheng Dai,Sheng Dai +6 more
TL;DR: Sodium amide (NaNH2), a readily available strong base, was investigated as an efficient reagent for chemical activation of mesoporous carbon (MC) in the temperature range of 400-900°C, aiming to enhance the CO2 adsorption performance as mentioned in this paper.
References
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Journal ArticleDOI
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