Increase of Hydrogen Storage Capacity of CNTs by Using Transition Metal, Metal Oxide-CNT Nanocomposites

• Authors: M. Larijani , S. Safa
• Languages of publication: EN

Abstracts

EN

In this paper, we examined the synergetic effect of transition metals or their oxides as decorative agent with carbon nanotubes on the hydrogen storage capacity. The TiO_2, Pd, and PdO shell nanoparticles were used as decorative agent on the surface of carbon nanotubes. The samples were investigated by X-ray diffraction, Raman spectroscopy and transmission electron microscopy. The thermal stability was investigated by thermogravimetric analysis testing. The hydrogen storage capacity was measured by a custom-made Sieverts apparatus. The Pd and TiO_2 doped carbon nanotube shows the most marked hydrogen storage capacity, 7 times higher than pristin carbon nanotubes after 30 min storage. The results show that the hydrogen storage capacity of the PdO shell- carbon nanotube composite is very low in comparison with those of two others and does not represent a significant difference with that of carbon nanotubes.

Keywords

EN

61.82.Rx; 68.37.Lp; 81.07.De; 88.30.R-

Discipline

• 68.37.Lp: Transmission electron microscopy (TEM)
• 61.82.Rx: Nanocrystalline materials
• 81.07.De: Nanotubes
• 88.30.R-: Hydrogen storage

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 3
• Pages: 732-736

Dates

published

2014-08

received

2012-12-10

(unknown)

2014-04-20

Contributors

author

M. Larijani

• Radiation Applications Research School, Nuclear Science and Technology Research Institute (NSTRI), Karaj, Iran

author

S. Safa

• Young Researchers and Elite Club, South Tehran Branch, Islamic Azad University, Tehran, Iran

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Identifiers

DOI

10.12693/APhysPolA.126.732