Hydrogen generation by hydrolysis of mixtures of magnesium hydride with citric acid

Keywords

magnesium hydride, citric acid, mechanochemical ball milling, hydrolysis.

Cite as

Berezovets V. V., Kytsya A. R., Zasadnyy T. M., Zavaliy I. Yu., and Yartys V. A. Hydrogen generation by hydrolysis of mixtures of magnesium hydride with citric acid. Physico­chemical Mechanics of Materials. 2022. 58(2), 066-071.

Abstract

A composite based on magnesium hydride and citric acid is obtained by mechanical milling and used for hydrogen generation. Magnesium hydride is synthesized by reactive milling of magnesium in hydrogen gas. The resulting composite material is characterized by a more rapid release of hydrogen as compared to a pure MgH₂. Hydrogen release from a MgH₂ × 5C₆H₈O₇ sample is completed in 1 min and yields 300 ml. The influence of the composite composition on the rate and extent of the hydrolysis of MgH₂ is studied and optimized for its use for hydrogen generation. The promoting influence of citric acid on the hydrolysis of magnesium hydride is analyzed.

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