The activation of Mg2Ni with water
Abstract
For many years there has been great effort invested in finding alternative sources of energy for internal combustion engines. Since hydrogen com busts so well it is considered to be an attractive candidate for the eventual replacement of gasoline. An alloy well suited for storing hydrogen is Mg2 Ni, magnesium nickel. Mg2Ni is light and absorbs hydrogen to form the metal hydride compound Mg2 NiH4 When a metal or alloy is activated it can absorb hydrogen gas. The method currently in use for the activation of Mg2 Ni requires temperatures of 300-350-C and pressures of 300-450 psi for two to three days with occasional cycling1 This is an energy intensive approach to the activation of MgNi. The activation method is also time consuming and expensive.
ion of t-.lg2Ni. The activation method is also time consuming and expensive. A solution to this problem is presented in this treatise. Previous methods of Mg2Ni activation can be discarded since a more benign treatment has been discovered. Mg2 Ni can be quickly, safely, and inexpensively rendered suitable for hydrogen absorption. It has been discovered in the laboratory that when magnesium nickel is exposed liquid water or water vapor at ambient conditions, it becomes activated. The effects of water exposure duration have been ascertained, and this laboratory has shown that Mg2 Ni can be activated in an ambient humid environment, such as the humid atmosphere of Central Florida. Mg2Ni can also be activated with liquid water in as little as 10 seconds. DSC thermal analysis was used to help quantify Mg2 Ni activation. The extent of activation was evaluated by how much hydrogen a metal or alloy absorbed, and this was partly quantified by how closely the hydride approached NgNiH in stoichiometry.
Notes
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Graduation Date
1996
Semester
Spring
Advisor
Hampton, Michael D.
Degree
Master of Science (M.S.)
College
College of Arts and Sciences
Department
Chemistry
Format
Pages
66 p.
Language
English
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
Identifier
DP0028689
Subjects
Arts and Sciences -- Dissertations, Academic; Dissertations, Academic -- Arts and Sciences
STARS Citation
Adams, G. W. Christian, "The activation of Mg2Ni with water" (1996). Retrospective Theses and Dissertations. 2852.
https://stars.library.ucf.edu/rtd/2852