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Characteristics of Hydrogen Storage by Sn/MgH2 Nanocomposite Obtained by Mechanical Milling of MgH2 with Sn

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Abstract:

The hydrogen desorption of Sn/MgH2 nanocomposite which is formed by ball milling of MgH2 and tin compounds (Sn, Sn(C4H9)4 or SnCl2), has been studied. The hydrogen desorption properties (desorption temperature and enthalpy of dehydriding) were significantly improved as a result of a Sn/MgH2 nanocomposite formation. TDS (thermal desorption spectrometry), TG (thermogravimetry) and DSC (differential scanning calorimeter) measurements exhibited the existence of at least two types of hydrogen species in the Sn/MgH2 nanocomposite resulting from ball milling of MgH2 with Sn; the one was hydrogen in the newly formed Sn/MgH2 nanocomposite and the other hydrogen derived from MgH2 remaining in Sn/MgH2.

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Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

1637-1640

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.1637

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Online since:

October 2007

Authors:

Hayao Imamura, Kazuki Yoshihara, Mika Yoo, Ichiro Kitazawa, Yoshihisa Sakata, Shinji Ooshima, Takeshi Kataoka

Keywords:

Composite, Hydrides, Hydrogen Storage, Magnesium, Mechanical Milling

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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