Nanocrystalline materials for hydrogen storage
Nanocrystalline materials for hydrogen storage
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储氢纳米晶材料
DOI：
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发表时间：
2006
期刊：
影响因子：
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通讯作者：
M. Jurczyk
中科院分区：
文献类型：
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作者：
M. Jurczyk
随着纳米晶合金的出现，储氢材料的研究进入了一个令人兴奋的新时期。本演讲回顾了波兹南理工大学关于纳米晶氢化物电极材料的合成和性能的研究。在我们的工作中，纳米晶材料是通过机械合金化（MA）和退火合成的。该材料的实例包括TiFe-、ZrV 2-、LaNi 5- 和Mg 2 Ni-型相。氢主体材料的性质可以通过合金化来显着改变以获得所需的存储特性。通过机械合金化和退火制备的纳米晶ZrV 2 - 和LaNi 5 型粉末的储氢性能与熔铸（微晶）合金没有太大差异。最后，将介绍纳米晶合金的电子性能。合成的合金用作镍氢电池负极材料。
Hydrogen storage materials research is entered a new and exciting period with the advent of the nanocrystalline alloys. This presentation reviews research at the Poznan University of Technology, on the synthesis and properties of nanocrystalline hydride electrode materials. In our work, nanocrystalline materials have been synthesized by mechanical alloying (MA) followed by annealing. Examples of the materials include TiFe-, ZrV 2 -, LaNi 5 - and Mg 2 Ni-type phases. The properties of hydrogen host materials can be modified substantially by alloying to obtain the desired storage characteristics. The hydrogen storage properties of nanocrystalline ZrV 2 - and LaNi 5 -type powders prepared by mechanical alloying and annealing show no big difference with those of melt casting (microcrystalline) alloys. Finally, the electronic properties of nanocrystalline alloys will be presented. The synthesized alloys were used as negative electrode materials for Ni-MH battery.