ISSN:
1432-0630
Keywords:
82.65
;
81
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Abstract It is found that a large number of metal hydrides such as hydrides of materials in Ca−Mg−Ni can form water when exposed to O2 largely without signs for concomitant substrate oxidation. One can speak of a catalytic reaction in this connection as the H-depleted metal matrix can in most cases be rehydrided and water synthesis repeated on exposure to O2. In some cases a considerable portion of the H combustion reaction takes place in a matter of seconds. Some of the metal hydrides such as hydrides of CaNi4B, CeNi3, and YbNi2, are relatively stable concerning decomposition of the alloy by the product water, while others, for example hydrides of CaNi3, and CaNi2, are rapidly decomposed by the product water forming the hydroxide of the electropositive metal. They also produce fine ferromagnetic Ni-particles which could be interesting for other catalytic purposes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00899882
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