Preparation of Cu/CNT Composite Particles and Catalytic Performance on Thermal Decomposition of Ammonium Perchlorate

摘要

Composite particles of carbon nanotubes (CNTs) and Cu were prepared by a chemical reduction method.Characterization of Cu/CNT composite particles was performed by TEM,SEM,FT-IR,XRD,XPS,AAS,DTA and EDS.The results show that the surface of CNTs is covered by Cu particles,and that the diameter of Cu/CNT composite particles gets larger than that of CNTs.Furthermore,in the presence of Cu/CNT composite particles,the peak temperature of the high-temperature decomposition of ammonium perchlorate (AP) decreased by 126.3 deg C,and the peak of the low-temperature decomposition disappeared.Compared with a sample of simply mixed Cu and CNTs,the peak temperature of the high-temperature decomposition of AP-Cu/CNTs composite particles decreased by 11.4 deg C.Compared with Cu,the peak temperature of the high-temperature decomposition of AP-Cu/CNT composite particles decreased by 20.9 deg C.This work shows that the catalytic performance of Cu on the thermal decomposition of AP can be improved by compounding with CNTs.