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Improved hydrogenation properties of Mg-x(Ti0.9 Zr0.2 Mn1.5 Cr0.3) composites

ISSN号：1003-6326
期刊名称：Transactions of Nonferrous Metals Society of China
时间：0
页码：1447-1451
语言：英文
分类：TQ326.5[化学工程—合成树脂塑料工业] TQ333.7[化学工程—橡胶工业]
作者机构：[1]Materials and Thermochemistry Laboratory, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China, [2]Department of Materials Science and Engineering, China Jiliang University, Hangzhou 310018, China, [3]College of Chemistry and Chemical Engineering, Liaoning Normal University, Dalian 116029, China
相关基金：Projects（20833009, 20873148, U0734005） supported by the National Natural Science Foundation of China; Project（2010CB631303） supported by the National Basic Research Program of China; Project（2009A11 GX052） supported by Dalian Science and Technology Foundation, China; Project（KFJJ10-1Z） supported by the State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, China; Project（Y4090507） supported by the Zhejiang Basic Research Program of China
相关项目：铝合金与水反应的热化学研究

关键词：复合材料性能, 加氢动力学, 镁, 反应球磨, 反应动力学, 复合粉体, 质量分数, 储氢性能, hydrogen storage, hydrogenation kinetic, Ti0.9 Zr0.2 Mn1.5 Cr0.3 alloy, catalytic effect

中文摘要：

Mgx (Ti0.9 Zr0.2 Mn1.5 Cr0.3 )(x=20% ， 30% ， 40%)( 集体部分) 合成粉末被反应的球 milling 与氢和他们的氢存储性质准备，微观结构被 XRD， SEM 和 pressure-composition-temperature 调查测量。结果证明 composites 在 553 K 和好加氢动力学有 3.83%-5.07% 氢能力，甚至在房间温度。在他们之中， milled Mg-30%(Ti0.9Zr0.2Mn1.5Cr0.3 ) 合成当它能快速在 373 K 吸收 2.1% 氢，有最高的加氢动力学， 3.5% 在在 473 K 的 2 000 s，在 3 MPa 氢压力下面在 553 K 在 60 s 弄平 3.26% 。改进加氢性质来自粒子在 Mg 粒子的表面上一致地驱散的 Ti0.9 Zr0.2 Mn1.5 Cr0.3 的催化效果。

英文摘要：

Mg-x（Ti0.9 Zr0.2 Mn1.5 Cr0.3）（x=20%, 30%, 40%）（mass fraction）composite powders were prepared by reactive ball milling with hydrogen and their hydrogen storage properties and microstructure were investigated by XRD, SEM and pressurecomposition-temperature measurement. The results show that the composites have 3.83%-5.07% hydrogen capacity at 553 K and good hydrogenation kinetics, even at room temperature. Among them, the milled Mg-30%（Ti0.9Zr0.2Mn1.5Cr0.3）composite has the highest hydrogenation kinetics as it can quickly absorb 2.1% hydrogen at 373 K, 3.5% in 2 000 s at 473 K, even 3.26% in 60 s at 553 K under 3 MPa hydrogen pressure. The improved hydrogenation properties come from the catalytic effect of Ti0.9 Zr0.2 Mn1.5 Cr0.3 particles dispersed uniformly on the surface of Mg particles.

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