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Phosphorus‐Modulation‐Triggered Surface Disorder in Titanium Dioxide Nanocrystals Enables Exceptional Sodium‐Storage Performance

Journal Article


Abstract


  • Structural modulation and surface engineering have remarkable advantages for fast and efficient charge storage. Herein, we present a phosphorus modulation strategy which simultaneously realizes surface structural disorder with interior atomic-level P-doping to boost the Na + storage kinetics of TiO 2 . It is found that the P-modulated TiO 2 nanocrystals exhibit a favourable electronic structure, and enhanced structural stability, Na + transfer kinetics, as well as surface electrochemical reactivity, resulting in a genuine zero-strain characteristic with only approximately 0.1 % volume variation during Na + insertion/extraction, and exceptional Na + storage performance including an ultrahigh rate capability of 210 mAh g −1 at 50 C and a strong long-term cycling stability without significant capacity decay up to 5000 cycles at 30 C.

Authors


  •   Xia, Qingbing (external author)
  •   Huang, Yang (external author)
  •   Xiao, Jin (external author)
  •   Wang, Lei (external author)
  •   Lin, Zeheng (external author)
  •   Li, Weijie
  •   Liu, Hui (external author)
  •   Gu, Qinfen (external author)
  •   Liu, Hua K.
  •   Chou, Shulei

Publication Date


  • 2019

Citation


  • Xia, Q., Huang, Y., Xiao, J., Wang, L., Lin, Z., Li, W., Liu, H., Gu, Q., Liu, H. Kun. & Chou, S. (2019). Phosphorus‐Modulation‐Triggered Surface Disorder in Titanium Dioxide Nanocrystals Enables Exceptional Sodium‐Storage Performance. Angewandte Chemie - International Edition, 58 (12), 4022-4026.

Scopus Eid


  • 2-s2.0-85061614605

Number Of Pages


  • 4

Start Page


  • 4022

End Page


  • 4026

Volume


  • 58

Issue


  • 12

Place Of Publication


  • Germany

Abstract


  • Structural modulation and surface engineering have remarkable advantages for fast and efficient charge storage. Herein, we present a phosphorus modulation strategy which simultaneously realizes surface structural disorder with interior atomic-level P-doping to boost the Na + storage kinetics of TiO 2 . It is found that the P-modulated TiO 2 nanocrystals exhibit a favourable electronic structure, and enhanced structural stability, Na + transfer kinetics, as well as surface electrochemical reactivity, resulting in a genuine zero-strain characteristic with only approximately 0.1 % volume variation during Na + insertion/extraction, and exceptional Na + storage performance including an ultrahigh rate capability of 210 mAh g −1 at 50 C and a strong long-term cycling stability without significant capacity decay up to 5000 cycles at 30 C.

Authors


  •   Xia, Qingbing (external author)
  •   Huang, Yang (external author)
  •   Xiao, Jin (external author)
  •   Wang, Lei (external author)
  •   Lin, Zeheng (external author)
  •   Li, Weijie
  •   Liu, Hui (external author)
  •   Gu, Qinfen (external author)
  •   Liu, Hua K.
  •   Chou, Shulei

Publication Date


  • 2019

Citation


  • Xia, Q., Huang, Y., Xiao, J., Wang, L., Lin, Z., Li, W., Liu, H., Gu, Q., Liu, H. Kun. & Chou, S. (2019). Phosphorus‐Modulation‐Triggered Surface Disorder in Titanium Dioxide Nanocrystals Enables Exceptional Sodium‐Storage Performance. Angewandte Chemie - International Edition, 58 (12), 4022-4026.

Scopus Eid


  • 2-s2.0-85061614605

Number Of Pages


  • 4

Start Page


  • 4022

End Page


  • 4026

Volume


  • 58

Issue


  • 12

Place Of Publication


  • Germany