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Porous VN nanosheet arrays on MXene carbon fibers for flexible supercapacitors.

Deyang ZhangDi WangBinhe FengJinbing ChengHailong YanJin ChangZhaorui WangPaul K ChuYongsong Luo
Published in: Chemical communications (Cambridge, England) (2024)
VN usually has poor rate performance and cycle stability. In this work, porous VN nanosheet arrays were prepared on carbon nanofibers embedded with Ti 3 C 2 T x nanosheets by electrospinning and chemical vapor deposition. The 3D network accelerates the transfer of electrons and electrolyte ions, prevents the aggregation of VN and the self-stacking of MXene, and enhances cycle stability. The solid-state flexible device comprising Co 3 O 4 , MXCF@VN, and KOH/PVA exhibits exceptional energy densities of 83.95 W h kg -1 and robust cycling stability (82.8% retention after 20 000 cycles).
Keyphrases
  • solid state
  • metal organic framework
  • quantum dots
  • tissue engineering
  • highly efficient
  • high density
  • reduced graphene oxide
  • ionic liquid
  • gold nanoparticles
  • water soluble
  • transition metal