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

H. B. Lu; C. K. Poh; L. C. Zhang; Z. P. Guo; X. B. Yu; H. K. Liu

doi:10.1016/j.jallcom.2009.02.125

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

H. B. Lu, C. K. Poh, L. C. Zhang, Z. P. Guo, X. B. Yu, H. K. Liu

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

62 Citations (Scopus)

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. © 2009 Elsevier B.V.

Original language	English
Pages (from-to)	152-155
Journal	Journal of Alloys and Compounds
Volume	481
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2009.02.125
Publication status	Published - 29 Jul 2009
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

Funding

The research was financially supported by the Commonwealth Scientific & Industrial Research Organisation (CSIRO) National Hydrogen Materials Alliance and an Australian Research Council (ARC) Discovery project (DP0771193).

Research Keywords

Hydrogen absorbing materials
Kinetics
Nanostructured materials
Thermodynamic properties

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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. {\textcopyright} 2009 Elsevier B.V.",

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T1 - Dehydrogenation characteristics of Ti- and Ni/Ti-catalyzed Mg hydrides

AU - Lu, H. B.

AU - Poh, C. K.

AU - Zhang, L. C.

AU - Guo, Z. P.

AU - Yu, X. B.

AU - Liu, H. K.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to <a href="mailto:[email protected]">[email protected]</a>.

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N2 - 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. © 2009 Elsevier B.V.

AB - 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. © 2009 Elsevier B.V.

KW - Hydrogen absorbing materials

KW - Kinetics

KW - Nanostructured materials

KW - Thermodynamic properties

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DO - 10.1016/j.jallcom.2009.02.125

M3 - RGC 21 - Publication in refereed journal

SN - 0925-8388

VL - 481

SP - 152

EP - 155

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

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

Abstract

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