CIESC Journal ›› 2007, Vol. 58 ›› Issue (11): 2793-2797.
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ZHI Chunlei;SONG Hongchang;LI Fengsheng;LIU Leili;LIU Hongying;TAN Linghua
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支春雷;宋洪昌;李凤生;刘磊力;刘宏英;谈玲华
Abstract:
Mg2NiH4 was prepared by the replacement-diffusion method,and its structure was characterized with SEM,XRD and DSC.Mg2NiH4 had high purity,a great deal of crackle on the surface,and high activity.Its hydrogen-storage capacity was 3.6% and affranchising hydrogen temperature was 292.4℃.DSC results showed that Mg2NiH4 had good catalytic effect on the thermal decomposition of ammonium perchlorate(AP).When the content of Mg2NiH4 reached 10%(mass),the high temperature exothermic peak of AP was decreased by 108.2℃ and the exothermic heat increased by 217.0%.Meanwhile,the catalysis mechanism was discussed.
Key words: 储氢材料, Mg2NiH4, 高氯酸铵, 热分解
摘要:
采用置换-扩散法制备得到Mg2NiH4,用SEM、XRD和DSC等对其结构和性能进行了表征。Mg2NiH4纯度较高,含氢量为3.6%,放氢温度为292.4℃。用DSC法研究了Mg2NiH4对高氯酸铵(AP)热分解的催化性能。结果表明:加入含量为10%的Mg2NiH4可使AP高温放热峰温降低108.2℃,使表观分解热增加217.0%,Mg2NiH4对高氯酸铵热分解具有良好的催化作用。Mg2NiH4含量增加,对高氯酸铵热分解的催化作用增强。初步探讨了Mg2NiH4催化高氯酸铵热分解的作用机理。
关键词: 储氢材料, Mg2NiH4, 高氯酸铵, 热分解
ZHI Chunlei, SONG Hongchang, LI Fengsheng, LIU Leili, LIU Hongying, TAN Linghua. Preparation of Mg2NiH4 and its catalytic characteristics of thermal decomposition of ammonium perchlorate[J]. CIESC Journal, 2007, 58(11): 2793-2797.
支春雷, 宋洪昌, 李凤生, 刘磊力, 刘宏英, 谈玲华. Mg2NiH4储氢材料的制备及对高氯酸铵热分解的催化作用 [J]. 化工学报, 2007, 58(11): 2793-2797.
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