The hydrogen storage behavior of Mg3La and Mg3LaNi0.1
The hydrogen storage behavior of Mg3La and Mg3LaNi0.1
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DOI：
10.1016/j.scriptamat.2006.08.052
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发表时间：
2006-12-01
影响因子：
6
通讯作者：
Zhu, M.
中科院分区：
文献类型：
--
作者：
Ouyang, L. Z.;Qin, F. X.;Zhu, M.
利用X射线衍射仪和压力-成分等温线测试方法研究了镁镧和镁镧镍0.1合金的储氢性能和微观结构。Mg_3La和Mg_3La-Ni_(0.1)合金具有较快的吸氢/放氢动力学。室温下的吸氢动力学实验曲线可用Avrami-Erofev方程很好地拟合。Mg3La和Mg3LaNi0.1的可逆储氢量分别为2.89和2.73wt.%。还计算了Mg_3La-H脱氢反应的焓和熵。(C)2006 Acta Materialia Inc.由爱思唯尔有限公司出版。保留所有权利。
The hydrogen storage properties and microstructure of Mg3La and Mg3LaNi0.1 alloys were investigated by X-ray diffraction and pressure-composition isotherm measurement. Mg3La and Mg3LaNi0.1 alloys can absorb hydrogen at room temperature with rapid hydriding/dehydriding kinetics. The experimental curves of hydrogen absorption kinetics at room temperature can be well fitted by the Avrami-Erofeev equation. The reversible hydrogen storage capacities of Mg3La and Mg3LaNi0.1 are 2.89 and 2.73 wt.%, respectively. The enthalpy and entropy of the Mg3La-H dehydriding reaction were also calculated. (c) 2006 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.