Continuous Tubular Nanofibers of Vanadium Pentoxide by Electrospinning for Energy Storage Devices
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 hydr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Netherlands
2012
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/12379/ http://umpir.ump.edu.my/id/eprint/12379/ http://umpir.ump.edu.my/id/eprint/12379/ http://umpir.ump.edu.my/id/eprint/12379/1/Continuous%20tubular%20nanofibres%20of%20vanadium%20pentoxide%20by%20electrospinning%20for%20energy%20storage%20devices.pdf |
| Summary: | 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 ~60 nm and wall thickness ~±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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