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

• Authors: E. Grigorova , M. Khristov , M. Khrussanova
• Languages of publication: EN

Abstracts

EN

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. [...]

Keywords

EN

Hydrogen storage material; Composite materials; Mechanical alloying; Gas-solid reaction

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2010
• Volume: 8
• Issue: 4
• Pages: 737-743

Dates

published

1 - 8 - 2010

online

17 - 6 - 2010

Contributors

author

E. Grigorova

• Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

author

M. Khristov

• Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

author

M. Khrussanova

• Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, 1113, Sofia, Bulgaria

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Identifiers

DOI

10.2478/s11532-010-0040-0