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Metals 2019, 9(2), 242; https://doi.org/10.3390/met9020242

First Hydrogenation Enhancement in TiFe Alloys for Hydrogen Storage Doped with Yttrium

Hydrogen Research Institute, Université du Québec à Trois-Rivières, 3351 des Forges, Trois-Rivières, QC G9A 5H7, Canada
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Received: 27 December 2018 / Revised: 27 January 2019 / Accepted: 1 February 2019 / Published: 18 February 2019
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Abstract

The aim of this investigation was to improve the first hydrogenation of TiFe by adding yttrium. The compositions studied were TiFe + x wt.% Y with x = 4, 6, and 8. From electron microscopy it was found that all alloys were multiphase with a matrix of TiFe phase containing less than 0.4 at.% of Y and a secondary phase rich in yttrium. When x increased, the chemical compositions of the matrix changed and the secondary phase changed. The sample with 8% of yttrium had the fastest kinetics. The hydrogen capacity increased with the amount of Y. View Full-Text
Keywords: TiFe alloy; Yttrium; secondary phase; hydrogen storage TiFe alloy; Yttrium; secondary phase; hydrogen storage
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Gosselin, C.; Huot, J. First Hydrogenation Enhancement in TiFe Alloys for Hydrogen Storage Doped with Yttrium. Metals 2019, 9, 242.

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