Manufacturing of Hydride-Forming Alloys from Mixed Titanium-Iron Oxide

M.W. Davids; M. Lototskyy; B.G. Pollet

doi:10.4028/www.scientific.net/AMR.746.14

Paper Titles

Preface and Committee

High Performance of the CFBC Pilot Plant with CO₂ Chemical Absorption by Optimizing the Absorber Parameters
p.3

Synthesis and Properties Study of Novel Ferrocene Derivatives
p.9

Manufacturing of Hydride-Forming Alloys from Mixed Titanium-Iron Oxide
p.14

Synthesis and Characterization of a Novel Polyhydroxy Triazine Charring Agent and Properties of its Flame Retarded Polyproylene
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Chemical Constituents and Bioactivity of Chloranthus fortunei
p.28

Studies of Selective Removal of Iron (III) from the Simulated Bauxite Hydrochloric Acid Leaching Liquor by Solvent Extraction
p.31

Synthesis and In Vitro Anti-Ulcer Effect of Triazolo-Methyl Tetrahydrobenzofuran Oxime Ether Derivatives
p.35

Synthesis and Structure Elucidation of Novel Oxime Ether Type H/K+-ATPase Inhibitors
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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 746Manufacturing of Hydride-Forming Alloys from Mixed...

Manufacturing of Hydride-Forming Alloys from Mixed Titanium-Iron Oxide

Abstract:

Synthesis of TiFebased metal hydride-forming alloy from mixed titanium iron oxide (ilmenite, FeTiO₃) was carried out by a two-stage reduction of the latter using H₂ and CaH₂ as reducing agents. The reversible hydrogen absorption capacity of the TiFe based material was about 0.5 wt. % H, that is significantly lower than the corresponding values (~1.8 wt. % H) reported in the literature. The main reason for that was in too high amount of oxygen present in the as-prepared TiFe alloy. Thus in order to improve the hydrogen absorption of the raw TiFe, the material was further alloyed together with Zr, Cr, Mn, Ni and Cu to yield an AB₂ alloy. For the as-prepared AB₂ alloy, the reversible hydrogen sorption capacity was about 1.3 wt. % H at P = 40 bar and >1.8 wt. % at P = 150 bar, which is acceptable for stationary applications. Finally, the material was found to be superior when compared to known AB₂-type alloys, with regard to their activation and poisoning tolerance.

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Periodical:

Advanced Materials Research (Volume 746)

Pages:

14-22

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.746.14

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Online since:

August 2013

Authors:

M.W. Davids, M. Lototskyy, B.G. Pollet

Keywords:

AB₂, Alloying, Hydrogen Absorption, Ilmenite, Metal Hydride, TiFe, Two-Stage Reduction

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