LaNi_5+TiFe_(0.9)Mn_(0.1)合金的贮氢性能  

Hydrogen Storage Properties of LaNi_5+TiFe_(0.9)Mn_(0.1) Alloys

作　　者：赵强[1] 薛建伟[1] 杜志刚[1] 李晋平[1] 

机构地区：[1]太原理工大学精细化工研究所,山西太原030024

出　　处：《太原理工大学学报》2005年第5期606-608,共3页Journal of Taiyuan University of Technology

基　　金：山西省自然科学基金资助项目(981016)

摘　　要：用冶炼法合成LaNi5+TiFe0.9Mn0.1复合贮氢合金,研究了LaNi5+TiFe0.9Mn0.1合金的贮氢性能。研究结果表明:由于TiFe0.9Mn0.1合金的加入,可有效地降低LaNi5的平台压力;当TiFe0.9Mn0.1的质量分数为15%左右时,放氢曲线中出现两个平台;TiFe0.9Mn0.1的质量分数趋于25%时,它的平台压力又逐渐升高,贮氢量逐渐增大,温度升高则第二个平台消失,贮氢量降低。该合金适用于低温贮氢。LaNi5 ＋ TiFe0.9 Mn0.1 alloys were prepared by melt casting method, and their ability of the hydrogen storage was investigated. The results show that the hydrogen storage material plateau pressure will decrease effectively because of the addition of TiFe0.9 Mn0.1. The alloy shows two plateaus in their P-C isotherms when the content of TiFe0.9 Mn0.1 is 15%; if the content is 25%, its plateau becomes higher. With the increase of temperature, the second plateau will disappear, and the hydrogen storage capacity will decrease. This alloy can be used as hydrogen storage material in low temperature.

关 键 词：LANI5 TiFe0.9Mn0.1 合金 贮氢性能 平台压力 

分 类 号：TG139.7[一般工业技术—材料科学与工程]