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Facile Synthesis of SiO2@C Nanoparticles Anchored on MWNT as High-Performance Anode Materials for Li-ion Batteries

Carbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated S... Full description

Journal Title: Nanoscale Research Letters Jul 2017, Vol.12(1), pp.1-7
Main Author: Zhao, Yan
Other Authors: Liu, Zhengjun , Zhang, Yongguang , Mentbayeva, Almagul , Wang, Xin , Maximov, M , Liu, Baoxi , Bakenov, Zhumabay , Yin, Fuxing
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 19317573 ; E-ISSN: 1556276X ; DOI: 10.1186/s11671-017-2226-2
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title: Facile Synthesis of SiO2@C Nanoparticles Anchored on MWNT as High-Performance Anode Materials for Li-ion Batteries
format: Article
creator:
  • Zhao, Yan
  • Liu, Zhengjun
  • Zhang, Yongguang
  • Mentbayeva, Almagul
  • Wang, Xin
  • Maximov, M
  • Liu, Baoxi
  • Bakenov, Zhumabay
  • Yin, Fuxing
subjects:
  • Lithium-Ion Batteries
  • Discharge
  • Batteries
  • Nanoparticles
  • Nanoparticles
  • Ion Transport
  • Anodes
  • Heat Treatment
  • Discharge Capacity
  • Electron Microscopy
  • Lithium
  • Nanoparticles
  • Lithium
  • Carbon
  • Heat Treatment
  • Lithium
  • Silica
  • Nanotechnology
  • Multi Wall Carbon Nanotubes
  • Sol-Gel Processes
ispartof: Nanoscale Research Letters, Jul 2017, Vol.12(1), pp.1-7
description: Carbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated SiO2 nanoparticles onto a flexible MWNT conductive network, which facilitated fast electron and lithium-ion transport and improved structural stability of the composite. As prepared, ternary composite anode showed superior cyclability and rate capability compared to a carbon-coated silica counterpart without MWNT (SiO2@C). The SiO2@C/MWNT composite exhibited a high reversible discharge capacity of 744 mAh g−1 at the second discharge cycle conducted at a current density of 100 mA g−1 as well as an excellent rate capability, delivering a capacity of 475 mAh g−1 even at 1000 mA g−1. This enhanced electrochemical performance of SiO2@C/MWNT ternary composite anode was associated with its unique core-shell...
language: eng
source:
identifier: ISSN: 19317573 ; E-ISSN: 1556276X ; DOI: 10.1186/s11671-017-2226-2
fulltext: fulltext_linktorsrc
issn:
  • 19317573
  • 1931-7573
  • 1556276X
  • 1556-276X
url: Link


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titleFacile Synthesis of SiO2@C Nanoparticles Anchored on MWNT as High-Performance Anode Materials for Li-ion Batteries
creatorZhao, Yan ; Liu, Zhengjun ; Zhang, Yongguang ; Mentbayeva, Almagul ; Wang, Xin ; Maximov, M ; Liu, Baoxi ; Bakenov, Zhumabay ; Yin, Fuxing
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subjectLithium-Ion Batteries ; Discharge ; Batteries ; Nanoparticles ; Nanoparticles ; Ion Transport ; Anodes ; Heat Treatment ; Discharge Capacity ; Electron Microscopy ; Lithium ; Nanoparticles ; Lithium ; Carbon ; Heat Treatment ; Lithium ; Silica ; Nanotechnology ; Multi Wall Carbon Nanotubes ; Sol-Gel Processes
descriptionCarbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated SiO2 nanoparticles onto a flexible MWNT conductive network, which facilitated fast electron and lithium-ion transport and improved structural stability of the composite. As prepared, ternary composite anode showed superior cyclability and rate capability compared to a carbon-coated silica counterpart without MWNT (SiO2@C). The SiO2@C/MWNT composite exhibited a high reversible discharge capacity of 744 mAh g−1 at the second discharge cycle conducted at a current density of 100 mA g−1 as well as an excellent rate capability, delivering a capacity of 475 mAh g−1 even at 1000 mA g−1. This enhanced electrochemical performance of SiO2@C/MWNT ternary composite anode was associated with its unique core-shell...
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descriptionCarbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated SiO2 nanoparticles onto a flexible MWNT conductive network, which facilitated fast electron and lithium-ion transport and improved structural stability of the composite. As prepared, ternary composite anode showed superior cyclability and rate capability compared to a carbon-coated silica counterpart without MWNT (SiO2@C). The SiO2@C/MWNT composite exhibited a high reversible discharge capacity of 744 mAh g−1 at the second discharge cycle conducted at a current density of 100 mA g−1 as well as an excellent rate capability, delivering a capacity of 475 mAh g−1 even at 1000 mA g−1. This enhanced electrochemical performance of SiO2@C/MWNT ternary composite anode was associated with its unique core-shell...
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titleFacile Synthesis of SiO2@C Nanoparticles Anchored on MWNT as High-Performance Anode Materials for Li-ion Batteries
authorZhao, Yan ; Liu, Zhengjun ; Zhang, Yongguang ; Mentbayeva, Almagul ; Wang, Xin ; Maximov, M ; Liu, Baoxi ; Bakenov, Zhumabay ; Yin, Fuxing
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abstractCarbon-coated silica nanoparticles anchored on multi-walled carbon nanotubes (SiO2@C/MWNT composite) were synthesized via a simple and facile sol-gel method followed by heat treatment. Scanning and transmission electron microscopy (SEM and TEM) studies confirmed densely anchoring the carbon-coated SiO2 nanoparticles onto a flexible MWNT conductive network, which facilitated fast electron and lithium-ion transport and improved structural stability of the composite. As prepared, ternary composite anode showed superior cyclability and rate capability compared to a carbon-coated silica counterpart without MWNT (SiO2@C). The SiO2@C/MWNT composite exhibited a high reversible discharge capacity of 744 mAh g−1 at the second discharge cycle conducted at a current density of 100 mA g−1 as well as an excellent rate capability, delivering a capacity of 475 mAh g−1 even at 1000 mA g−1. This enhanced electrochemical performance of SiO2@C/MWNT ternary composite anode was associated with its unique core-shell...
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date2017-07-01