Abstract
The detailed mechanism of the first-step dehydrogenation of Mg(AlH4)2 is investigated by using a comprehensive kinetic analysis. The reaction mode (geometrical contraction or nucleation-growth-impingement), intrinsic rate constant, dimensionality, rate-controlling step and activation energies of nucleation and growth are obtained from the simultaneous fitting of isothermal and non-isothermal experimental curves. The interpretation and comparison of these kinetic parameters for the pristine, high-energy ball milled and TiF4 doped Mg(AlH4)2 help reveal the mechanism of the dehydrogenation of Mg(AlH4)2, including how Mg(AlH4)2 decomposes to MgH2, Al and H2, and why high-energy ball milling and TiF4 doping can significantly improve the dehydrogenation properties.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
