Paper Title:

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

Periodical Materials Science Forum (Volumes 561 - 565)
Main Theme PRICM 6
Edited by Young Won Chang, Nack J. Kim and Chong Soo Lee
Pages 1637-1640
DOI 10.4028/www.scientific.net/MSF.561-565.1637
Citation Hayao Imamura et al., 2007, Materials Science Forum, 561-565, 1637
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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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.