能源化学(英文) ›› 2014, Vol. 23 ›› Issue (3): 403-410.DOI: 10.1016/S2095-4956(14)60164-9

• ARTICLES • 上一篇    

TiO2 nanocrystals/graphene hybrids with enhanced Li-ion storage performance

Qingqing Zhang, Rong Li, Mengmeng Zhang, Bianli Zhang, Xinglong Gou   

  1. Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, Sichuan, China
  • 收稿日期:2014-01-24 修回日期:2014-04-10 出版日期:2014-05-24 发布日期:2014-05-25
  • 通讯作者: Xinglong Gou
  • 基金资助:

    This work was supported by the National Natural Science Foundation of China (51071131) and the Program for New Century Excellent Talents in University (NCET-10-0890).

TiO2 nanocrystals/graphene hybrids with enhanced Li-ion storage performance

Qingqing Zhang, Rong Li, Mengmeng Zhang, Bianli Zhang, Xinglong Gou   

  1. Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637000, Sichuan, China
  • Received:2014-01-24 Revised:2014-04-10 Online:2014-05-24 Published:2014-05-25
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (51071131) and the Program for New Century Excellent Talents in University (NCET-10-0890).

摘要: TiO2 nanocrystals/graphene hybrids (TiO2-G) with ultrafine TiO2 nanocrystals (~7 nm in size) conformally coated on ultrathin graphene nanosheets (~2 layers thick) were successfully prepared via a facile one-pot solvothermal route under mediated conditions. With the feature of large surface area, abundant mesopores and high thermal stability, the TiO2-G nanohybrids exhibited large reversible Li-ion storage capacity with excellent cycling stability (629 mAh·g-1 after 400 cycles at a current of 60 mA·g-1) and good rate capability (184 mAh·g-1 at a current density of 3 A·g-1) due to the synergetic effects and strong interactions between the components, showing great promise in applications for advanced energy storage devices.

关键词: titania, graphene, nanohybrids, anode materials, rechargeable Li-ion battery

Abstract: TiO2 nanocrystals/graphene hybrids (TiO2-G) with ultrafine TiO2 nanocrystals (~7 nm in size) conformally coated on ultrathin graphene nanosheets (~2 layers thick) were successfully prepared via a facile one-pot solvothermal route under mediated conditions. With the feature of large surface area, abundant mesopores and high thermal stability, the TiO2-G nanohybrids exhibited large reversible Li-ion storage capacity with excellent cycling stability (629 mAh·g-1 after 400 cycles at a current of 60 mA·g-1) and good rate capability (184 mAh·g-1 at a current density of 3 A·g-1) due to the synergetic effects and strong interactions between the components, showing great promise in applications for advanced energy storage devices.

Key words: titania, graphene, nanohybrids, anode materials, rechargeable Li-ion battery