物理化学学报 >> 2002, Vol. 18 >> Issue (02): 97-99.doi: 10.3866/PKU.WHXB20020201

通讯    下一篇

新贮氢材料--含微量锰的微晶镁粉

王敬;吴锋;单中强   

  1. 北京理工大学化工与材料学院,北京 100081;国家高技术绿色材料发展中心,北京 100081
  • 收稿日期:2001-11-15 修回日期:2001-12-03 发布日期:2002-02-15
  • 通讯作者: 吴锋 E-mail:wufeng863@sina.com

A Novel Hydrogen-storage Material--Microcrystalline Mg(Mn)

Wang Jing;Wu Feng;Shan Zhong-Qiang   

  1. College of Chemical Engineering and Material, Beijing Institute of Technology, Beijing 100081; National Development Center of Hi-Tech Green Material, Beijing 100081
  • Received:2001-11-15 Revised:2001-12-03 Published:2002-02-15
  • Contact: Wu Feng E-mail:wufeng863@sina.com

摘要: 以气雾化冷凝法制备了含有微量Mn的微晶镁粉(Mg(Mn)). XRD表明,其主物相仍然是六方晶系的微晶镁,其粒径在100~500 nm之间.这种微晶镁粉(Mg(Mn))具有较高的储氢量(6.2%),在280 ℃具有较快的放氢速度.

关键词: 镁(锰), 微晶, 气雾化冷凝, 催化, 储氢

Abstract: Microcrystalline magnesium containing a small amount of manganese(i.e.microcrystal Mg(Mn)) has been prepared by an arc vaporization-condensation method. XRD indicated that the microcrystalline Mg(Mn) powder has a main phase of microcrystalline Mg remaining the hexagonal crystal structure. The TEM micrographs showed that some wadding was inlaid on the surface of the microcrystalline Mg and the particle size was about 100~500 nm. It exhibits high capacity for hydrogen storage(6.2%) and high speed for hydrogen desorption at 280 ℃. This characteristic is advantageous to the application of hydrogen storage.

Key words: Magnesium(Manganese), Microcrystalline, Vaporization-condensation,  Catalysis, Hydrogen-storage