球磨工艺对LiAlH4放氢性能的影响

稀有金属材料与工程, 2008, 37(7): 1273-1276.

球磨工艺对LiAlH4放氢性能的影响

郑雪萍 ^1, , 李平 ^2, , 安富强 ^3, , 王国清 ^4, , 曲选辉 ^5,

1.北京科技大学,新能源材料与技术北京市重点实验室,北京,100083

2.北京科技大学,新能源材料与技术北京市重点实验室,北京,100083

3.北京科技大学,新能源材料与技术北京市重点实验室,北京,100083

4.北京钢铁研究总院,北京,100086

5.北京科技大学,新能源材料与技术北京市重点实验室,北京,100083

基金项目: 国家"863"计划(2006AA03Z502)&教育部长江学者和创新团队发展计划(I2P407)

关键词： LiAlH4 , LaCl3 , 球磨 , 放氢性能

Effect of Ball Milling on the Dehydrogenation of LiAlH4

采用PCT(Pressure-Conten-Temperature)、XRD和SEM等测试方法,对经过不同时间球磨的LiAlH4 及其掺杂3 mol LaCl3试样的放氢性能进行了研究.结果发现,球磨工艺在明显降低LiAlH4放氢温度的同时也明显降低了其放氢量.此外,XRD结果发现,球磨试样的衍射峰发生了小幅度的宽化,部分衍射峰的强度有所降低,然而晶体结构没有发生明显变化,这说明LiAlH4具有很好的稳定性.

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材料期刊网

球磨工艺对LiAlH4放氢性能的影响

Effect of Ball Milling on the Dehydrogenation of LiAlH4

参考文献