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An electrospun lignin/polyacrylonitrile nonwoven composite separator with high porosity and thermal stability for lithium-ion batteries.
In this work, lignin/polyacrylonitrile composite fiber-based nonwoven membranes (L–PANs) were prepared by electrospinning with dispersing different amounts of lignin in the polyacrylonitrile (PAN) solutions. The porosity of the L–PANs could reach 74%, which was significantly higher than that of the commercialized PP separator (42%). After exposure at 150 C for 15 min, the L–PA...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13879.html |
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Facile hydrothermal treatment route of reed straw-derived hard carbon for high performance sodium ion battery
Although hard carbon is deemed to be the most potential industrialized sodium-ion batteries anode material, there are still some problems need to be solved. In this study, a waste biomass of reed straw is pretreated by using a new strategy-hydrothermal treatment instead of pickling and successfully transformed to hard carbon materials through subsequent carbonization process. The reed straw carbon...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13877.html |
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Electrospun Pitch/Polyacrylonitrile composite carbon nanofibers as high performance anodes for lithium-ion batteries
A new kind of soft carbon and hard carbon composite nanofibers were fabricated from isotropic pitch and polyacrylonitrile via simple electrospinning followed by stabilization and carbonization. The obtained fibrous mat was directly used as anodes of lithium-ion batteries without binder added and current collector. The composite nanofibers electrodes display a large reversible capa...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13875.html |
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Low-cost water caltrop shell-derived hard carbons with high initial coulombic efficiency for sodium-ion battery anodes.
Hard carbon possesses excellent properties of sodium storage, but high cost and low initial coulombic efficiency significantly affect the anode in large-scale application of sodium-ion batteries (SIBs). Here, we first report the waste water caltrop shell-derived hard carbons prepared by facile pyrolysis and subsequent an acid treatment. With the dense structure, low specific surface area and large...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13874.html |
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Composite of mesocarbon microbeads/hard carbon as anode material for lithium ion capacitor with high electrochemical performance.
Lithium-ion capacitor (LIC) is fabricated using activated carbon (AC) as the positive electrode and a mixture of mesocarbon microbeads (MCMB) and hardcarbon (HC) as the negative electrode (denoted as MH). The structure characterization of carbon materials are investigated by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and nitrogen adsorption apparatus. The electro...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13868.html |
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Mesoporous carbon with large pore volume and high surface area prepared by a co-assembling route for Lithium-Sulfur Batteries
Mesoporous carbon (MC) materials with large pore volume and high surface area have been synthesized as the conductive matrix in the sulfur cathode forthe lithium sulfur (Li/S) batteries using a simultaneous templating and carbonization method. The magnesium citrate is used as the precursor of the carbon and provides nanometer sized MgO particles template. Wide-angle X-ray diffraction (WA-XRD), hig...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13866.html |
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【Nanoscale Research Letters】Preparation and Transport Performances of High-Density, Aligned Carbon Nanotube Membranes
We report a simple and effective method for the preparation of high-density and aligned carbon nanotube (CNT) membranes. The CNT arrays were prepared by water-assisted chemical vapor deposition (CVD) and were subsequently pushed over and stacked into dense membranes by mechanical rolling. It was demonstrated that various gases and liquids, including H2, He, N2, O2, Ar, water, ethanol, hexane, an...
http://www.polymer.cnt//ss/zhaobin/publicationsshow_13804.html |
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【Ceramics International】Three-dimensional porous graphene/nickel cobalt mixed oxide composites for high-performance hybrid supercapacitor
Transition metallic mixed oxides have gained great interest for hybrid supercapacitor because of their extremely low cost and excellent electrochemical performance. Herein, we report a novel approach of overabundant metallic-ions- induced combination and space confined Ostwald ripening strategy to synthesize three-dimension graphene (3DG)/metal organic framework composite which could be transfor...
http://www.polymer.cnt//ss/zhaobin/publicationsshow_13793.html |
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Robust and flexible cellulose nanofiber/multi-walled carbon nanotube film for high-performance electromagnetic interference shielding
For the preparation of lightweight and high performance electromagnetic interference shielding material, the poor dispersion of carbon nanotube (CNT) and the weak interfacial strength degrade the mechanical properties of the polymer based composite with extremely high filler contents. Herein cellulose nanofibers (CNF) prepared by TEMPO-oxidized exhibits a&...
http://www.polymer.cnt//ss/zouhuawei/publicationsshow_13777.html |
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High char yields of DOPO/organosilicon-modified epoxy resins and phosphorus-silicon synergism of thermal stability
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http://www.polymer.cnt//ss/zouhuawei/publicationsshow_13774.html |
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