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作者:

Wang, Hongmei (Wang, Hongmei.) | Xiong, Jie (Xiong, Jie.) | Cheng, Xing (Cheng, Xing.) | Chen, Ge (Chen, Ge.) (学者:陈戈) | Kups, Thomas (Kups, Thomas.) | Wang, Dong (Wang, Dong.) | Schaaf, Peter (Schaaf, Peter.)

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EI Scopus SCIE

摘要:

Sodium ion batteries (SIBs), which share a similar electrochemical reaction mechanism to lithium ion batteries (LIBs), have already attracted much attention because of the rich reserves and low cost of sodium. TiO2 is considered as one of the promising anodes for sodium ion batteries due to its large sodium storage capacity and potentially low cost. However, low electrical conductivity limits the wide application of TiO2 for sodium ion batteries. Here nitrogen doped TiO2 (N-TiO2) nanoparticles are prepared via nitrogen plasma treatment and investigated as anode materials for sodium ion batteries. The N-TiO2 nanoparticles demonstrate a much better rate performance, yielding discharge capacities of about 621 mA h g(-1) at 0.1C and 75 mA h g(-1) at 5C (1C = 335 mA h g(-1)), and a clearly enhanced capacity retention (more than 98% after more than 400 cycles) compared with those of pristine TiO2. What is different from the other nitrogen doped TiO2 reported in the literature is that a disordered surface layer with a thickness of around 2.5 nm is formed on the N-TiO2 nanoparticles after N-2 plasma treatment, which is barely found in normal nitrogen doping processes. Both the doped nitrogen and the disordered surface layer play significant roles in enhancing the sodium storage performance.

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作者机构:

  • [ 1 ] [Wang, Hongmei]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 2 ] [Xiong, Jie]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 3 ] [Kups, Thomas]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 4 ] [Wang, Dong]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 5 ] [Schaaf, Peter]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 6 ] [Wang, Hongmei]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 7 ] [Xiong, Jie]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 8 ] [Kups, Thomas]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 9 ] [Wang, Dong]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 10 ] [Schaaf, Peter]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany
  • [ 11 ] [Cheng, Xing]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China
  • [ 12 ] [Chen, Ge]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China

通讯作者信息:

  • 陈戈

    [Wang, Dong]TU Ilmenau, Inst Werkstoffechn, FG Werkstoffe Elektrotech, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany;;[Wang, Dong]TU Ilmenau, Inst Mikro & Nanotechnol MacroNano, Gustav Kirchhoff Str 5, D-98693 Ilmenau, Germany;;[Chen, Ge]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Beijing 100124, Peoples R China

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来源 :

SUSTAINABLE ENERGY & FUELS

ISSN: 2398-4902

年份: 2019

期: 10

卷: 3

页码: 2688-2696

5 . 6 0 0

JCR@2022

JCR分区:1

被引次数:

WoS核心集被引频次: 11

SCOPUS被引频次: 12

ESI高被引论文在榜: 0 展开所有

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