The effect of carbon nanotubes on the electrochemical hydrogen storage performance of LaNi5 rare earth alloy

2005 ◽  
Vol 25 (4) ◽  
pp. 414-420 ◽  
Author(s):  
Xiaojuan Fu ◽  
Haiyan Zhang ◽  
Yiming Chen ◽  
Shunhua Li ◽  
Shuangping Yi ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Rare Earth ◽  
Hydrogen Storage ◽  
Rare Earth Alloy ◽  
Storage Performance ◽  
Electrochemical Hydrogen Storage ◽  
Hydrogen Storage Performance

Hydrogen Storage Properties of Mg-Ni Alloy Catalysed by Multi-Walled Carbon Nanotubes

2010 ◽  
Vol 654-656 ◽  
pp. 2843-2846
Author(s):  
Sima Aminorroaya ◽  
Hua Kun Liu
Keyword(s):  
Carbon Nanotubes ◽  
Hydrogen Storage ◽  
Cast Sample ◽  
Storage Performance ◽  
Milled Sample ◽  
Ni Alloy ◽  
Multi Walled Carbon Nanotubes ◽  
Hydrogen Storage Performance ◽  
Walled Carbon Nanotubes ◽  
Storage Properties

The hydrogen storage performance of ball-milled sample of cast Mg-6 wt% Ni alloy was investigated. Morphology and microstructure of the cast sample and achieved powders were evaluated by high-resolution scanning electron microscopy. The activation characteristics of ball-milled alloy are compared with those of the materials obtained by ball-milling of 5 wt% multi-walled carbon nanotubes (MWCNTs) for 2 hours. MWCNTs enhanced the absorption kinetics considerably. The hydrogen content of modified powder by MWCNTs reached to the maximum hydrogen capacity within two minutes of exposure to hydrogen at 370°C and 2MPa pressure. The evidence is provided that nucleation and growth of hydrides accelerate drastically by homogenously distribution of MWCNTs on the surface of ball-milled powders.

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