Storage of potassium ions in layered vanadium pentoxide nanofiber electrodes for aqueous pseudocapacitors

ChemSusChem. 2013 Dec;6(12):2231-5. doi: 10.1002/cssc.201300480. Epub 2013 Oct 7.

Abstract

Spaced out: This paper investigates potassium-ion storage in vanadium pentoxide nanofibers (VNFs, K0.33 V2 O5 ) with a layered architecture. In situ XRD experiments reveal that the interplanar space of VNF expands/contracts upon extraction/insertion of potassium ions during the redox process.

Keywords: potassium storage; pseudocapacitors; redox chemistry; vanadium oxide; x-ray diffraction.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Electric Capacitance
  • Electrodes
  • Microscopy, Electron, Transmission
  • Nanofibers / chemistry*
  • Nanofibers / ultrastructure
  • Potassium / chemistry*
  • Vanadium Compounds / chemistry*
  • X-Ray Diffraction

Substances

  • Vanadium Compounds
  • vanadium pentoxide
  • Potassium