Dehydrogenation characteristics of Ti- and Ni/Ti-catalyzed Mg hydrides

Authors

Hai-Bo Lu, University of WollongongFollow
Chung-Kiak Poh, University of WollongongFollow
Laichang Zhang, University of WollongongFollow
Zaiping Guo, University of WollongongFollow
Xuebin Yu, University of WollongongFollow
Hua-Kun Liu, University of WollongongFollow

RIS ID

27696

Publication Details

Lu, H. B., Poh, C. K., Zhang, L. C., Guo, Z. P., Yu, X. & Liu, H. K. (2009). Dehydrogenation characteristics of Ti- and Ni/Ti-catalyzed Mg hydrides. Journal of Alloys and Compounds, 481 (1-2), 152-155.

Abstract

The desorption capacity, thermodynamics, and kinetics of Ti- and Ni/Ti-catalyzed Mg hydrides were investigated using Sievert-type apparatus and differential scanning calorimetry. Based on analysis of the van’t Hoff equation and the Kissinger equation, the addition of Ti and Ni as catalysts has been found to play a key role in improving the thermodynamic and kinetic properties of MgH₂ by decreasing the desorption temperature and the activation energy. A combination of Ti and Ni is a more effective catalyst than either Ti or Ni alone, suggesting the existence of a synergetic effect.