Synthesis and Hydrogen Sorption Properties of MgH2 Composites with TiFe and Ti3Fe3O Additives

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materials Science Pub Date : 2024-02-05 DOI:10.1007/s11003-024-00763-0
V. V. Berezovets, O. P. Kononiuk, R. V. Denys, I. Yu. Zavalii
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Abstract

Hydrides of magnesium composites with additives of TiFe intermetalide and Ti3Fe3O suboxide was synthesized by mechanical milling in hydrogen. The rate of mechanochemical hydrogenation of magnesium in the presence of these additives doubles, and the temperature of hydrogen desorption decreases by 100…150°C. With the addition of graphite, the particle size of the composites decreases, and the rate of formation of magnesium hydride during milling and in subsequent cycles of hydrogen sorption-desorption increases. The properties of composites, depending on different initial particle sizes and magnesium purity, were investigated. Composites based on magnesium chips were synthesized using a simplified method.

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含 TiFe 和 Ti3Fe3O 添加剂的 MgH2 复合材料的合成与吸氢特性
在氢气中通过机械研磨合成了添加了金属间化合物 TiFe 和亚氧化物 Ti3Fe3O 的镁复合材料氢化物。在这些添加剂的存在下,镁的机械化学氢化速率增加了一倍,氢气解吸温度降低了 100...150°C。加入石墨后,复合材料的粒度减小,在研磨过程中和随后的吸氢-解吸循环中形成氢化镁的速率增加。根据不同的初始粒度和镁纯度,对复合材料的特性进行了研究。使用简化方法合成了基于镁屑的复合材料。
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来源期刊
Materials Science
Materials Science 工程技术-材料科学:综合
CiteScore
1.60
自引率
44.40%
发文量
63
审稿时长
4-8 weeks
期刊介绍: Materials Science reports on current research into such problems as cracking, fatigue and fracture, especially in active environments as well as corrosion and anticorrosion protection of structural metallic and polymer materials, and the development of new materials.
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