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作者:

Wang, Yu (Wang, Yu.) | Jin, Yuhong (Jin, Yuhong.) | Zhao, Chenchen (Zhao, Chenchen.) | Duan, Yuhao (Duan, Yuhao.) | He, Xinzi (He, Xinzi.) | Jia, Mengqiu (Jia, Mengqiu.)

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EI Scopus SCIE

摘要:

A three-dimensional SnO2 quantum dots/graphene aerogel (SnO2 QDs/GA) composite was prepared using a facile and scalable strategy without adding any surfactant and reducing agent. This as-prepared nanocomposite, with zero-dimensional SnO2 QDs (2-5 nm) anchoring and dispersing on the surface of three-dimensional graphene aerogel, exhibits better properties as anode material for sodium ion batteries than bare SnO2 for its higher reversible capacity (319 mAh g(-1) at 50 mA g(-1) after 50 cycles) and stability (rate capacity still remains 150 mAh g(-1) at 800 mA g(-1)). Such three-dimensional graphene aerogel could not only act as an electronic conductive matrix for the fast transportation of sodium ion and electrons, but also provide double protection against the aggregation and volume changes of SnO2 QDs during cycling. (C) 2016 Elsevier B.V. All rights reserved.

关键词:

Composite materials Cycling performance Energy storage and conversion SnO2 quantum dots Sodium ion batteries

作者机构:

  • [ 1 ] [Wang, Yu]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 2 ] [Duan, Yuhao]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 3 ] [Jia, Mengqiu]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China
  • [ 4 ] [Jin, Yuhong]Beijing Univ Technol, Beijing Guyue New Mat Res Inst, Beijing 100124, Peoples R China
  • [ 5 ] [Zhao, Chenchen]Beijing Univ Technol, Beijing Guyue New Mat Res Inst, Beijing 100124, Peoples R China
  • [ 6 ] [He, Xinzi]Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China

通讯作者信息:

  • [Jia, Mengqiu]Beijing Univ Chem Technol, Beijing Key Lab Electrochem Proc & Technol Mat, Beijing 100029, Peoples R China;;[Jin, Yuhong]Beijing Univ Technol, Beijing Guyue New Mat Res Inst, Beijing 100124, Peoples R China

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来源 :

MATERIALS LETTERS

ISSN: 0167-577X

年份: 2017

卷: 191

页码: 169-172

3 . 0 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:169

中科院分区:3

被引次数:

WoS核心集被引频次: 36

SCOPUS被引频次: 33

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

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