通过在3.0 MPa氢气气氛下球磨Mg-30%LaNi2(质量分数)的混合粉末,制得镁基复合储氢材料.X射线衍射分析表明,球磨80 h后的物相组成为MgH2,Mg2NiH4和LaH3,表明球磨过程中发生固态反应;SEM及EDS分析表明,复合体系中成分分布均匀;该复合储氢材料具有较高的活性和储氢量,在3.0 MPa氢气压力和473 K～553 K之间的条件下,可以在1 min之内完成饱和吸氢量的80%以上;在553 K时储氢量达到5.419%(质量分数).
参考文献
| [1] | Hayao Imamura;Nozomu Sakasai;Tadatoshi Fujinaga .Characterization and Hydriding Properties of Mg-Graphite Composites Prepared by Mechanical Grinding as New Hydrogen Storage Materials[J].Journal of Alloys and Compounds,1997,253-254:34-37. |
| [2] | Fujii H;Orimo S;Ikeda K .Cooperative Hydriding Properties in a Nanostructured Mg2Ni-H System[J].Journal of Alloys and Compounds,1997,253-254:80-83. |
| [3] | Hayao Imamura;Nozomu Sakasai;Yasuyuki Kajii .Hydrogen Absorption of Mg-Based Composites Prepared by Mechanical Milling: Factors Affection Its Characteristics[J].Journal of Alloys and Compounds,1996,232:218-223. |
| [4] | Hayakawa H;Ishido Y;Nomura K et al.Phase Transformations among Three Polymorphs of Mg2NiH4[J].Journal of the Less-Common Metals,1984,103:277-283. |
| [5] | Reilly J J;Wiswall R H .[J].Inorganic Chemistry,1968,2254(07):88. |
| [6] | Karl J Gross;Peter Spatz;Andreas Zuttel et al.[J].Journal of Alloys and Compounds,1996,240:206-213. |
| [7] | Liang G.;Huot J. .Hydrogen storage in mechanically milled Mg-LaNi_5 and MgH_2-LaNi_5 composites[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2000(1/2):261-265. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%