高等学校化学学报

高等学校化学学报 ›› 2002, Vol. 23 ›› Issue (9): 1784.

• 研究快报 • 上一篇    下一篇

Al2O3/TiH2包覆粉体的制备及其释氢性能的研究

方吉祥, 赵康, 谷臣清   

  1. 西安理工大学材料科学与工程学院, 西安 710048
  • 收稿日期:2002-01-06 出版日期:2002-09-24 发布日期:2002-09-24
  • 通讯作者: 赵康(1963年出生),男,博士,副教授,从事功能材料制备技术研究.E-mail:v730fjx@263.net E-mail:v730fjx@263.net
  • 基金资助:

    陕西省自然科学基金(批准号:2000C32);陕西省教育委员会基金(批准号:99JK228)资助

Preparation and Releasing Hydrogen Characteristic of Al2O3-Coated TiH2 Particles

FANG Ji-Xiang, ZHAO Kang, GU Chen-Qing   

  1. School of Materials Science and Engineering, Xi′an University of Technology, Xi′an 710048, China
  • Received:2002-01-06 Online:2002-09-24 Published:2002-09-24

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关键词: 包覆, Al2O3/TiH2颗粒, 释氢行为, 多孔铝

Abstract: The technique to prepare TiH2 coated with layers of Al2O3 particles by heterogeneous nucleation method with HAc-NaAc buffer solution as precipitation reagent was studied. The results show that the microscopic structure of Al2O3 coating layers depends on the pHvalue and Al3+ concentration range in the solution. The homogeneous and compact coating layers with Al2O3-coated TiH2 particles can be obtained at 0.05 mol/Land pH=4.5, after heating at 350 ℃. The hydrogen releasing of Al2O3/TiH2 particle is notably delayed with the increase of the temperature, and the delay effect can be used in the production of Al foams.

Key words: Coating, Al2O3/TiH2 particle, Releasing hydrogen characteristic, Al foams

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