La1-xYxNi 4.8Mn 0.2合金的贮氢性能研究

李慎兰 1; 程宏辉 1; 邓小霞 1; 陈伟 1; 2; 陈德敏 1; 杨柯 1

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La_1-xY_xNi _4.8Mn _0.2合金的贮氢性能研究

氢能研究 | 更新时间：2025-12-08

- La_1-xY_xNi _4.8Mn _0.2合金的贮氢性能研究
- Hydrogen Storage Properties of La_1-xY_xNi_4.8Mn_0.2 Alloys
- 西安交通大学学报 2008年42卷第3期页码：359-363
- 作者机构：
  
  1. 中国科学院金属研究所,沈阳,110016
  2. 中国科学院研究生院,北京,100049
- 作者简介：
- 基金信息：
  
  : 2007-08-13. 作者简介: 李慎兰(1982-),女,博士生;陈德敏(联系人),男,研究员. 基金项目: 国家高技术研究发展规划资助项目(2006AA05Z135);国家自然科学基金资助项目(507760942)
- DOI：
  中图分类号： TG139.7
- 网络首发：2008-03-10，
  
  纸质出版：2008
- 稿件说明：
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李慎兰 1, 程宏辉 1, 邓小霞 1, 等. La_1-xY_xNi _4.8Mn _0.2合金的贮氢性能研究[J]. 西安交通大学学报, 2008,42(3):359-363.

李慎兰 1, 程宏辉 1, 邓小霞 1, et al. Hydrogen Storage Properties of La_1-xY_xNi_4.8Mn_0.2 Alloys[J]. 2008, 42(3): 359-363.
李慎兰 1, 程宏辉 1, 邓小霞 1, 等. La_1-xY_xNi _4.8Mn _0.2合金的贮氢性能研究[J]. 西安交通大学学报, 2008,42(3):359-363. DOI：

李慎兰 1, 程宏辉 1, 邓小霞 1, et al. Hydrogen Storage Properties of La_1-xY_xNi_4.8Mn_0.2 Alloys[J]. 2008, 42(3): 359-363. DOI：

摘要

研究了w(Y)变化对La

1-x

4.8

0.2

(x=0.2

0.5)贮氢合金的晶胞参数、热力学性能、动力学性能和平台特性

及其抗粉化性能的影响.研究结果表明

随着w(Y)的增加

吸放氢平台压力升高

平台斜率增大

滞后因子略有增加

贮氢容量减少

吸氢动力学性能略有下降

但抗粉化性能却明显提高.研究发现

X射线衍射图谱中(111)主峰半高宽值与合金的滞后因子具有相同的变化趋势.

Abstract

The influences of Y content x on the lattice parameters

thermodynamic properties

absorption kinetics

plateau characters and pulverization resistance of La

1-x

4.8

0.2

(x=0.2

0.5)alloys are investigated. The experimental results show that with the increasing Y content

the absorption/desorption plateau pressure

the hysteresis factor and the plateau slope are enhanced

the absorption kinetics is reduced slightly and the hydrogen intake capacity is impaired while the pulverization resistance is improved obviously. It is found that the hysteresis factor has the same variation trend as full width at half maximum of(111)peak in the XRD patterns.

关键词

Keywords

references

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