4.6 Article

Ultrathin Cerium Orthovanadate Nanobelts for High-Performance Flexible All-Solid-State Asymmetric Supercapacitors

Journal

CHEMISTRY-AN ASIAN JOURNAL
Volume 10, Issue 2, Pages 338-343

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201403085

Keywords

cerium orthovanadate; electrode materials; energy storage; supercapacitor; ultrathin nanobelts

Funding

  1. New Century Excellent Talents of the University in China [NCET-13-0645]
  2. National Natural Science Foundation of China [NSFC-21201010, U1304504]
  3. Program for Innovative Research Team (in Science and Technology) in University of Henan Province [14IRTSTHN004]
  4. Science & Technology Foundation of Henan Province [14B150001]

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Ultrathin CeVO4 nanobelts were successfully synthesized by a hydrothermal method. The thickness of a single nanobelt is about 2.4 nm, which can effectively shorten the ion diffusion and fasten the charge pathway. More importantly, ultrathin CeVO4 nanobelts and graphene are easily assembled as a flexible all-solid-state asymmetric device, which shows a highly flexible property and achieves a maximum energy density of 0.78 m Wh cm(3) and a high life cycle of >6000 cycles.

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