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BY-NC-ND 3.0 license Open Access Published by De Gruyter Open Access June 17, 2010

Hydrogen sorption characteristics of magnesium-based composites with addition of Mg2Ni0.7Co0.3 and graphite

  • E. Grigorova EMAIL logo , M. Khristov and M. Khrussanova
From the journal Open Chemistry

Abstract

Magnesium-based composites of 75 wt% Mg — (10, 15, 20) wt% Mg2Ni0.7Co0.3 — (15, 10, 5) wt% C mechanically activated for 30 min under argon in a planetary mill, were obtained. Their absorption-desorption characteristics were investigated under a pressure P = 1 MPa and temperatures of 623, 573, 473, 423 and 373 K. Desorption was carried out at 623 K and 573 K and a pressure of 0.15 MPa. All the three composites showed improved hydriding kinetics as compared to pure magnesium. However, the desorption temperature was somewhat higher than needed for practical application.

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Published Online: 2010-6-17
Published in Print: 2010-8-1

© 2010 Versita Warsaw

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

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