SCI和EI收录∣中国化工学会会刊

›› 2008, Vol. 16 ›› Issue (2): 325-328.

• • 上一篇    下一篇

Synthesis of Co Nanoparticles and Their Catalytic Effect on the Decomposition of Ammonium Perchlorate

段红珍1,2, 蔺向阳1, 刘冠鹏1, 徐磊1, 李凤生1   

  1. 1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Department of Chemistry, School of Science, North University of China, Taiyuan 030051, China
  • 收稿日期:2007-05-31 修回日期:2007-12-05 出版日期:2008-04-28 发布日期:2008-04-28
  • 通讯作者: LI Fengsheng,E-mail:duanhz2000@163.com
  • 基金资助:
    the National Natural Science Foundation of China(50306008,50602024)

Synthesis of Co Nanoparticles and Their Catalytic Effect on the Decomposition of Ammonium Perchlorate

DUAN Hongzhen1,2, LIN Xiangyang1, LIU Guanpeng1, XU Lei1, LI Fengsheng1   

  1. 1. School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;
    2. Department of Chemistry, School of Science, North University of China, Taiyuan 030051, China
  • Received:2007-05-31 Revised:2007-12-05 Online:2008-04-28 Published:2008-04-28
  • Supported by:
    the National Natural Science Foundation of China(50306008,50602024)

摘要: The monodispersed Co nanoparticles were successfully prepared by means of hydrogen plasma method in inert atmosphere.The particle size,specific surface area,crystal structure and morphology of the samples were characterized by transmission electron microscopy(TEM),BET equation,X-ray diffraction(XRD),and the corre-sponding selected area electron diffraction(SAED).The catalytic effect of Co nanoparticles on the decomposition of ammonium perchlorate(AP)was investigated by differential thermal analyzer(DTA).Compared with the ther-mal decomposition of pure AP,the addition of Co nanoparticles(2%-10%,by mass)decreases the decomposition temperature of AP by 145.01-155.72℃.Compared with Co3O4 nanoparticles and microsized Co particles,the catalytic effect of Co nanoparticles for AP is stronger.Such effect is attributed to the large specific surface area and its interaction of Co with decomposition intermediate gases.The present work provides useful information for the application of Co nanoparticles in the AP-based propellant.

关键词: Co nanoparticle, ammonium perchlorate, hydrogen plasma method, catalytic effect, decomposition

Abstract: The monodispersed Co nanoparticles were successfully prepared by means of hydrogen plasma method in inert atmosphere.The particle size,specific surface area,crystal structure and morphology of the samples were characterized by transmission electron microscopy(TEM),BET equation,X-ray diffraction(XRD),and the corre-sponding selected area electron diffraction(SAED).The catalytic effect of Co nanoparticles on the decomposition of ammonium perchlorate(AP)was investigated by differential thermal analyzer(DTA).Compared with the ther-mal decomposition of pure AP,the addition of Co nanoparticles(2%-10%,by mass)decreases the decomposition temperature of AP by 145.01-155.72℃.Compared with Co3O4 nanoparticles and microsized Co particles,the catalytic effect of Co nanoparticles for AP is stronger.Such effect is attributed to the large specific surface area and its interaction of Co with decomposition intermediate gases.The present work provides useful information for the application of Co nanoparticles in the AP-based propellant.

Key words: Co nanoparticle, ammonium perchlorate, hydrogen plasma method, catalytic effect, decomposition