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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.
Trans Tech Publications
Publication date: 
1 Jan 2006

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

Biblio References: 
Volume: 518 Pages: 79-84
Materials science forum