The role of Al and Mg in the hydrogen storage of electrospun ZnO nanofibers

Zahira Yaakob, Dariush Jafar Khadem, Samaneh Shahgaldi, Wan Ramli Wan Daud, Siti Masrinda Tasirin

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Pure and doped ZnO nanofibers with Al and Mg were successfully synthesized via an electrospinning method using a sol-gel containing Polyvinylpyrrolidone as a spinning aid and a zinc nitrate precursor. Calcination of the doped and undoped electrospun nanofibers was conducted at 500°C in air, and the resultant structures were analyzed by X-ray diffraction (XRD) and Raman spectroscopy. The diameter of the doped nanofibers decreased with increasing viscosity and conductivity, as measured by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Energy dispersive spectroscopy (EDS) showed that Mg and Al are present in ZnO nanofibers. The pressure composition isotherm (PCI) demonstrated that the capacity of hydrogen storage in pure zinc oxide nanofibers is a factor of two greater than that of zinc oxide nanoparticles. However, Al-doped ZnO nanofibers have the highest capacity of hydrogen storage (2.81 wt%) at room temperature.

Original languageEnglish
Pages (from-to)8388-8394
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number10
DOIs
Publication statusPublished - May 2012

Fingerprint

Hydrogen storage
Nanofibers
zinc oxides
hydrogen
roasting
metal spinning
nitrates
isotherms
Raman spectroscopy
zinc
gels
viscosity
Zinc oxide
conductivity
nanoparticles
transmission electron microscopy
scanning electron microscopy
air
room temperature
diffraction

Keywords

  • Electrospinning
  • Hydrogen storage
  • Nanofibers
  • Zinc oxide

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

The role of Al and Mg in the hydrogen storage of electrospun ZnO nanofibers. / Yaakob, Zahira; Jafar Khadem, Dariush; Shahgaldi, Samaneh; Wan Daud, Wan Ramli; Tasirin, Siti Masrinda.

In: International Journal of Hydrogen Energy, Vol. 37, No. 10, 05.2012, p. 8388-8394.

Research output: Contribution to journalArticle

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