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MmNi5 and MmNi4.85Fe0.15 as Hydrogen Storage Medium

Johari, Anwar and Mohd. Yunus, Rosli and Noordin, Mohd. Suffian and Md. Ghazali, Mohd. Nazlee Faisal and Tuan Abdullah, Tuan Amran (2001) MmNi5 and MmNi4.85Fe0.15 as Hydrogen Storage Medium. Jurnal Teknologi F (35F). pp. 1-10. ISSN 0127-9696

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Official URL: http://www.penerbit.utm.my/onlinejournal/35/F/JT35...

Abstract

The characteristics of MmNi5 and MmNi4.85Fe0.15 in storing hydrogen gas were examined in this study. The absorption capacity of the metal was monitored under the influence of temperature and pressure. Due to the limitation on its operating conditions, the range of the temperature chosen was from 298K to 323K while pressure was varied from 2 to 30 bar. Study conducted on MmNi5, showed that the amount of hydrogen absorbed was inversely proportional to the operating temperature. In the study of MnNi5 the maximum absorption was achieved at 298K and exhibited the plateau pressure of 10 bar. The hydrogen content was expressed as weight and the value was calculated to be at 1.20 wt%. As for MmNi5 at 313K abd 323K, the results are pointed at 0.9 wt% and 0.8 wt% whilst the plateau was encountedered at 20 and 24 bar, respectively. Study conducted on MmNi4.85Fe0.15 showed inconsistent findings with theory. After thorough examination, it was realized that the misbehavior of the sample was due to the insufficient agrresiveness activations method employed.

Item Type:Article
Uncontrolled Keywords:Metal hydride, hydrogen storage, activation process, plateau pressure, hydrogen absorbed content
Subjects:T Technology > TP Chemical technology
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:1516
Deposited By: En Mohd. Nazir Md. Basri
Deposited On:07 Mar 2007 03:39
Last Modified:09 Nov 2010 08:13

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