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62. Tuning the morphologies of fluorine-doped tin oxides in the three-dimensional architecture of graphene for high-performance lithium-ion batteries
The morphology of electrode materials plays an important role in determining the performance of lithium-ion batteries (LIBs). However, studies on determining the most favorable morphology for high-performance LIBs have rarely been reported. In this study, a series of F-doped SnOx (F-SnO2 and F-SnO) materials with various morphologies was synthesized using ethylenediamine as a structure-directing a...
http://www.polymer.cnt//ss/jianxingeng/publicationsshow_13955.html |
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55. Cellulose Tailored Anatase TiO2 Nanospindles in Three-Dimensional Graphene Composites for High-Performance Supercapacitors
The morphologies of transition metal oxides have decisive impact on the performance of their applications. Here, we report a new and facile strategy forin situ preparation of anatase TiO2 nanospindles in three-dimensional reduced graphene oxide (RGO), structure (3D TiO2@RGO) using cellulose as both an intermediate agent eliminating the negative effect of graphene oxide (GO) on the growth of TiO2 c...
http://www.polymer.cnt//ss/jianxingeng/publicationsshow_13948.html |
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54. Conjunction of Conducting Polymer Nanostructures with Macroporous Structured Graphene Thin Films for High-Performance Flexible Supercapacitors
Fabrication of hybridized structures is an effective strategy to promote the performances of graphene-based composites for energy,storage/conversion applications. In this work, macroporous structured graphene thin films (MGTFs) are fabricated on various substrates including flexible graphene papers (GPs) through an ice-crystal-induced phase separation process. The MGTFs prepared on GPs (MGTF@GPs) ...
http://www.polymer.cnt//ss/jianxingeng/publicationsshow_13947.html |
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52. Three-dimensional Porous Carbon Composites Containing High Sulphur Nanoparticle Content for High-performance Lithium–Sulphur Batteries
Sulfur is a promising cathode material for lithium-sulfur batteries because of its high theoretical capacity (1,675 mA h g(-1)); however, its low electrical conductivity and the instability of sulfur-based electrodes limit its practical application. Here we report a facile in situ method for preparing three-dimensional porous graphitic carbon composites containing sulfur nanoparticles (3D S@PGC). ...
http://www.polymer.cnt//ss/jianxingeng/publicationsshow_13945.html |
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Free-standing, welded mesoporous carbon nanofibers as anode for high-rate performance Li-ion batteries
A novel type of renewable lignin-based mesoporous carbonized nanofibers (MCNFs) has been fabricated via electrospinning technique and thermal treatment, using lignin with polyacrylonitrile (PAN) as the carbon source and triblock copolymer Pluronic P 123 as the template. The obtained MCNFs were directly used as anodes of lithium-ion batteries (LIBs) without binder and current collector. The MCNFs a...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13887.html |
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Three-dimensional Si/hard-carbon/graphene network as high-performance anode material for lithium-ion batteries
The Si/hard-carbon/graphene (Si/HC/G) composite material used as lithium ion battery (LIB) anode was synthesized by emulsion polymerization of the mixture of resorcinol and formaldehyde in the suspension of silicon nanoparticles, followed by loading on the graphene sheets and annealing treatment of 800 A degrees C. The as-prepared three-dimensional Si/HC/G composite is composed of the Si/HC micros...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13885.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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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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Electrochemical Performance of Electrospun carbon nanofibers as free-standing and binder-free anodes for Sodium-Ion and Lithium-Ion Batteries
A series of hard carbon nanofiber-based electrodes derived from electrospun polyacrylonitrile (PAN) nanofibers (PAN-CNFs) have been fabricated by stabilization in air at about 280 degrees C and then carbonization in N-2 at heat treatment temperatures (HTT) between 800 and 1500 degrees C. The electrochemical performances of the binder-free, current collector-free carbon nanofiber-based anodes in li...
http://www.polymer.cnt//ss/shizhiqiang/publicationsshow_13867.html |
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