Journal of Inorganic Materials ›› 2015, Vol. 30 ›› Issue (4): 443-448.DOI: 10.15541/jim20140526

• Orginal Article • Previous Articles    

Ultra-long VO2(B) Nanobelts : One-step Hydrothermal Synthesis and
Electrochemical Properties

YANG Xue -Mei1, 2, LIU Zhong -Ping1, 2, LI Xiao -Dong1, 2, Zhang Ze -Ming2, JI Lan-Xiang2, DENG Jian-Guo1, 2   

  1. (1. Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China; 2. Sichuan Research Center of New Materials, Mianyang 621000, China)
  • Received:2014-10-20 Published:2015-04-10 Online:2015-03-26
  • About author:YANG Xue -Mei(1985–), female, candidate of Master degree. E-mail: ymmy20050410@163.com

Abstract:

Ultra-long VO2(B) nanobelts were fabricated by a facile one-step hydrothermal treatment. It was found that the nanobelts were about ~200 nm in width and dozens of microns in length. Being used as a cathode material, the VO2(B) nanobelts show superior rate capability, with discharge capacities of ca. 425, 175, 125, 90, 75 and 50 mAh/g at 50, 100, 200, 500, 1000 and 2000 mA/g, respectively. More importantly, excellent cycling stability without considerable capacity loss (10.41%) for 500 cycles is observed. The present study implied that the unique ultra-long nanobelts morphology and its intrinsic structural features are responsible for their excellent structure stability, and thus resulting in superior electrochemical performance.

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Key words: VO2(B), nanobelt, electrochemical property

CLC Number: