摘要
以硝酸铬和硝酸镍为原料,采用溶胶-凝胶法制备了纳米Ni Cr2O4,并用XRD和SEM对纳米亚铬酸镍(nano-NiCr_2O_4)的微观结构进行了表征。同时,采用TG-DTG研究了nano-NiCr_2O_4对六硝基六氮杂异伍兹烷(CL-20)和高氯酸铵(AP)热分解的催化作用,用Kissinger法、Ozawa法计算了非等温动力学参数,发现nano-NiCr_2O_4使CL-20和AP的热分解峰温降低,热分解表观活化能减小。
Nano-NiCr2o4 was prepared by a sol-gel method using Cr（NO3）3 and Ni（NO3）2 as the reactant. The microstructure of nano-NiCr2o4 was determined with XRD and SEM. The effects of the nano-NiCr2o4 on the thermal decomposition reaction of CL-20 or AP were studied by TG-DTG techniques. The results show that the addition of ano-NiCr2O4 makes the thermal decomposition peak temperature of CL-20 shift 10.1 K downward, and AP shift 24.9 K downward. The addition of nano-NiCrzO4 decreases the E value of the exothermic decomposition processes of CL-20 from 255.5 to 232.8 kJ/mol, and AP from 224.8 to 130.8 kJ/mol.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2015年第12期3069-3072,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金(21303133
21173163)
