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Desorption Behaviour in Nanostructured MgH2-Co

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Abstract:

The influence of the Co addition and synthesis route on desorption properties of MgH2 were investigated. Ball milling of MgH2-Co blends was performed under Ar using different milling intensities and different weight ratios. Microstructural and morphological characterization, performed by XRD and SEM, show a huge correlation with thermal stability and hydrogen desorption properties investigated by DSC. A complex desorption behaviour is correlated with the dispersion of the catalytic particles that appears to play a main role in desorption performances. The optimum catalyst concentration was found to be around 10 wt.%, while the optimum value of the ball to powder ratio was 10:1.

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Periodical:

Materials Science Forum (Volume 518)

Pages:

79-84

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.518.79

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Online since:

July 2006

Authors:

Amelia Montone, Jasna Grbović Novaković, Lj. Stamenković, Luca Pasquini, Anna Lisa Fiorini, Ennio Bonetti, Marco Vittori Antisari

Keywords:

Hydrogen Storage, Magnesium Hydride, Mechanical Milling, Microstructure, Scanning Electron Microscope (SEM)

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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