Journal ArticleDOI
Hierarchical porous carbon derived from sulfonated pitch for electrical double layer capacitors
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In this article, Hierarchical porous carbon (HPC) has been synthesized using sulfonated pitch as a precursor with a simple KOH activation process and the effect of the activation agent to precursor ratio on the porosity and the specific surface area is studied by nitrogen adsorption-desorption.About:
This article is published in Journal of Power Sources.The article was published on 2014-04-15. It has received 142 citations till now. The article focuses on the topics: Specific surface area.read more
Citations
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Microphase Separation Engineering toward 3D Porous Carbon Assembled from Nanosheets for Flexible All-Solid-State Supercapacitors.
TL;DR: In this article , 3D porous carbon assembled by nanosheets with tunable hierarchical porous structure is acquired from amphiphilic coal tar pitch and chitosan by means of a facile microphase separation strategy without any templates.
Journal ArticleDOI
The improvement of pitch activation by graphene for long-cycle Li–S batteries
Miao Cheng,Huifang Zhao,Zheng Zhao,Jie Wang,Lijuan Cao,Huinian Zhang,Xiaoyong Duan,Congwei Wang,Junying Wang,Junzhong Wang,Chunxiang Lu +10 more
TL;DR: In this paper, coal tar pitch was used to obtain porous carbon sheets sandwiched by graphene, and further impregnated with 71% sulphur as the cathode for long-term cycling lithium-sulphur battery.
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Monolithic porous carbon derived from polyvinyl alcohol for electrochemical double layer capacitors
TL;DR: In this article, the effects of preparation conditions on the sample specific surface area (SSA) and pore size have been investigated in detail, and the as-prepared optimum MCP exhibits a relatively high specific capacitance of about 225 F ǫg ⿿1 together with remarkable high-rate capability and long-term cycling stability.
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Lignite-derived mesoporous N- and O-enriched carbon sheet: a low-cost promising electrode for high-performance electrochemical capacitors
Siqi Zhu,Qiuli Chen,Yaoyao Shi,Zhiyi Chen,Ruiqi Bao,Lu Zhou,Linrui Hou,Kwun Nam Hui,Changzhou Yuan,Changzhou Yuan +9 more
TL;DR: In this article, a mesoporous N- and O-enriched carbon (NOC) with adjustable porosity and specific surface area (SSA) was fabricated by using low-cost lignite as a precursor coupled with general KOH or ZnCl2 activation for electrochemical capacitors.
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Facile synthesis of hierarchical porous carbon from crude biomass for high-performance solid-phase microextraction.
Cheng Hu,Yang Song,Fang Wang,Ji Rongting,Xiaona Li,Yuhao Fu,Xinglun Yang,Yongrong Bian,Xin Jiang +8 more
TL;DR: A hierarchical porous carbon (HPC) was synthesized by simple hydrothermal reaction and potassium hydroxide activation of crude biomass and found to be an efficient adsorbent for SPME of organic pollutants and provides a novel and promising HPC from crude biomass using a low-cost and facile synthetic route for S PME applications.
References
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Materials for electrochemical capacitors
TL;DR: This work has shown that combination of pseudo-capacitive nanomaterials, including oxides, nitrides and polymers, with the latest generation of nanostructured lithium electrodes has brought the energy density of electrochemical capacitors closer to that of batteries.
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Carbon materials for the electrochemical storage of energy in capacitors
TL;DR: In this article, different types of capacitors with a pure electrostatic attraction and/or pseudocapacitance effects are presented, and their performance in various electrolytes is studied taking into account the different range of operating voltage (1V for aqueous and 3 V for aprotic solutions).
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Anomalous Increase in Carbon Capacitance at Pore Sizes Less Than 1 Nanometer
TL;DR: The results challenge the long-held axiom that pores smaller than the size of solvated electrolyte ions are incapable of contributing to charge storage.
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Carbon Materials for Chemical Capacitive Energy Storage
TL;DR: 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.
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Metal-organic framework as a template for porous carbon synthesis
TL;DR: Porous carbon was synthesized by heating the precursor FA within the pores of MOF-5 to display a high specific surface area and important hydrogen uptake and excellent electrochemical properties as an electrode material for electrochemical double-layered capacitor (EDLC).