Two types of nano-sized metal oxides(nano CuO and nano Fe2O3)were prepared by hydrothermal method,the activated carbon was loaded onto the prepared nano CuO,nano Fe2O3 to obtain CuO@C and Fe2O3@C composites,and the prepared four types of catalysts were mixed with ammonium perchlorate(AP)to form mixture samples AP/CuO,AP/CuO@C,AP/Fe2O3,AP/Fe2O3@C.The catalytic mechanism and thermal decomposition kinetics characteristics of four types of cata-lysts for AP thermal decomposition were carried out through scanning electron microscope(SEM),differential scanning calo-rimeter(DSC),thermogravimetric-differential thermogravimetric(TG-DTG),and thermogravimetric-infrared spectrum(TG-FTIR)techniques respectively.The results show that the four catalysts catalyze two-step thermal decomposition reaction of AP into a single exothermic peak.At a heating rate of 5K/min,the thermal decomposition peak temperatures of AP were forwar-ded by 90.1,73.4,65.4,and 69 ℃ than those of pure AP,respectively.The main gas phase thermal decomposition prod-ucts include HCI,CO2,N2O,HNO3,and NO2 in AP/CuO@C with the highest content of NO2.The CO2 content in the main gas phase thermal decomposition products increases significantly,while the NO2 content slightly decreases in AP/Fe2O3@C.
万方数据
维普
