物理化学学报 >> 1998, Vol. 14 >> Issue (12): 1057-1060.doi: 10.3866/PKU.WHXB19981201

通讯    下一篇

纳米氢化钠的热稳定性和化学反应活性

范荫恒, 廖世健, 余道容   

  1. 中国科学院大连化学物理研究所,大连 116023|辽宁师范大学化学系,大连 116029
  • 收稿日期:1998-09-07 修回日期:1998-10-05 发布日期:1998-12-15
  • 通讯作者: 廖世健

Thermal Stability and Chemical Reactivity of Nanometric Sodium Hydride

Fan Yin-Heng, Liao Shi-Jian, Yu Dao-Rong   

  1. Dalian Institute of Chemical Physics,The Chinese Academy of Sciences,Dalian 116023|Department of Chemistry,Liaoning Normal University,Dalian 116029
  • Received:1998-09-07 Revised:1998-10-05 Published:1998-12-15
  • Contact: Liao Shi-Jian

关键词: 纳米氢化钠, 热稳定性, 反应活性, 催化加氢, 加氢脱卤

Abstract:

Nanometric sodium hydride (NaH*) possesses a large specific surface area. Its chemical reactivity is in orders of magnitude higher than that of the conmercial one. After heat treatment at 2ll℃, the specific surface area of NaH* becomes smaller whereas its chemical reactivity is even higher. This fact indicates that the specific surface area of NaH* particles is an important but not the only factor for its high reactivity. NaH treated at (400℃, 6h) still retains a specific surface area of 30m2 g-1 and gives fairly high chemical reactivity.

Key words: Nanometric sodium hydride, Thermal stability, Chemical reactivity, Catalytic hydrogenation, Hydrodehalogenation