Serapan hidrogen pada komposit magnesium oksida nano-gentian karbon

Translated title of the contribution: Hydrogen sorption of magnesium oxide carbon nanofibre composite

Nurul Zafirah Abd Khalim Khafidz, Zahira Yaakob, Timmiati Sharifah Najiha, Kuen Song Lin, Kean Long Lim

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Carbon nanofibres have high specific surface area to adsorb hydrogen on their surface and are widely investigated for hydrogen storage. Although carbon nanofibres can store a considerable amount of hydrogen, the adsorption of the latter must be conducted at cryogenic conditions. Here, MgO is proposed as a catalyst to improve the hydrogen storage performance of carbon nanofibres at room temperature because of the light weight MgO and its ability to dissociate hydrogen molecules. The magnesium oxide– carbon nanofibre (MgO–CNF) composite was prepared with polivinylpyrrolidone polymer and MgO via an electrospinner. The samples were characterised with field emission scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry and microgravimetric analysis. The MgO particles were formed on the surface and embedded inside the MgO–CNFs, thereby increasing the specific surface area. The as-synthesised MgO–CNFs with a specific surface area of 547 m 2 /g can store 2.54 wt.% of hydrogen at room temperature, showing more than 30% improvement as compared with that of CNFs.

Original languageMalay
Pages (from-to)60-70
Number of pages11
JournalMalaysian Journal of Analytical Sciences
Volume23
Issue number1
DOIs
Publication statusPublished - 1 Feb 2019

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Magnesium Oxide
Carbon nanofibers
Sorption
Hydrogen
Specific surface area
Composite materials
Hydrogen storage
Field emission
Cryogenics
Thermogravimetric analysis
Differential scanning calorimetry
Polymers
Adsorption
X ray diffraction
Temperature
Scanning electron microscopy
Catalysts
Molecules

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Serapan hidrogen pada komposit magnesium oksida nano-gentian karbon. / Khalim Khafidz, Nurul Zafirah Abd; Yaakob, Zahira; Sharifah Najiha, Timmiati; Lin, Kuen Song; Lim, Kean Long.

In: Malaysian Journal of Analytical Sciences, Vol. 23, No. 1, 01.02.2019, p. 60-70.

Research output: Contribution to journalArticle

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