期刊
JOURNAL OF NANOPARTICLE RESEARCH
卷 14, 期 11, 页码 -出版社
SPRINGER
DOI: 10.1007/s11051-012-1201-1
关键词
V2O5; Nanofibers; Nanotubes; Electrospinning; Supercapacitors
资金
- Universiti Malaysia Pahang (UMP) [RDU 110330]
- Ministry of Higher Education (MOHE) Malaysia [RDU 110602]
Tubular nanofibers (TNFs) of vanadium pentoxide (V2O5) were synthesized by electrospinning technique using a single spinneret for the first time by controlling the properties of the precursor solution. A partially miscible polymeric solution of vanadium oxytrihydroxide [VO(OH)(3)] was produced by hydrolysis of vanadyl acetylacetonate in Poly(vinylpyrrolidone) (PVP). The phase-separated polymer solution formed the core of the electrospun fibers whereas the VO(OH)(3) formed the shell; the core PVP has been removed by controlled heat treatment. The TNFs had an inner diameter similar to 60 nm and wall thickness similar to+/-100 nm. The capacitive behavior of the V2O5 TNFs was studied using cyclic voltammetry and galvanostatic cycling techniques. The studies showed ideal stable supercapacitive characteristics in the electrospun V2O5 TNFs.
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