| 纳米铜粉对高氯酸铵热分解的影响 |
| Effect of Nanometer Cu Powder on Thermal Decomposition of Ammonium Perchlorate |
|
| 摘要: |
| 关键词: 纳米铜粉 高氯酸铵 热分解 催化性能 |
| 基金项目: |
| Abstract: The decomposition behaviour of ammonium perchlorate (AP) has been investigated in the presence of Cu nanopowder by DTA. The results show that nanometer Cu powder decreased the first and second thermal decomposition temperature of AP by 35.1 ℃ and 130.2 ℃, respectively, and the DTA heat release of AP in the presence of Cu nanopowders increased to 1.20 kJ·g-1, showing good catalytic effect on the thermal decomposition of AP. The catalytic effect of Cu micron-size powder on the thermal decomposition of AP was less than that of Cu nanopowder. With the increase in content, Cu nanopowder enhanced its catalytic effect on the high temperature decomposition of AP, however, it weakened its catalytic effect on the low temperature decomposition of AP. The mechanism of catalysis for the thermal decomposition of AP is as follows: (1) metal oxider acts as the intermedium in the process of election tranfer, (2) Cu nanopowder reacts with the decomposed product of AP, (3) Cu nanopowder has special surface effect. |
| Keywords: Cu nanopowder ammonium perchlorate thermal decomposition catalysis |
| 投稿时间：2004-12-20 修订日期：2005-05-09 |
| 摘要点击次数: 1380 |
| 全文下载次数: 1337 |
| 刘磊力,李凤生,杨毅,谈玲华,张庆思.纳米铜粉对高氯酸铵热分解的影响[J].无机化学学报,2005,21(10):1525-1530. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
