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Catalytic Activity of Ferrates (NiFe2O4, ZnFe2O4 and CoFe2O4) on the Thermal Decomposition of Ammonium Perchlorate
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2019-09-10 , DOI: 10.1002/prep.201900211 Ming Zhang 1 , Fengqi Zhao 1 , Yanjing Yang 1 , Ting An 1 , Wengang Qu 1 , Hui Li 1 , Jiankan Zhang 1 , Na Li 1
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2019-09-10 , DOI: 10.1002/prep.201900211 Ming Zhang 1 , Fengqi Zhao 1 , Yanjing Yang 1 , Ting An 1 , Wengang Qu 1 , Hui Li 1 , Jiankan Zhang 1 , Na Li 1
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Three kinds of ferrates (NiFe2O4, ZnFe2O4 and CoFe2O4) were prepared via the facile solvothermal method and characterized using SEM, TEM, XRD, XPS, FT‐IR and BET instruments. The NiFe2O4, CoFe2O4 and ZnFe2O4 particles possess hollow structure with average particle size of 70, 220 and 360 nm, respectively. The catalytic performance of the ferrates for AP thermal decomposition were studied using DSC and TG‐DTG methods, and the decomposition mechanism of AP were suggested. The catalytic effects of different ferrates for AP thermal decomposition were significantly different. The CoFe2O4 has the best catalytic activity, and the high thermal decomposition peak temperature (THDP) and apparent activation energy (Ea) of AP were decreased by 108.99 °C and 37.38 kJ mol−1 in the presence of CoFe2O4 sample. Adding ferrates has no obvious influence on the gas‐phase decomposition products of AP, but has a great influence on the energy barrier of high temperature decomposition of AP. The excellent catalytic activity of CoFe2O4 is mainly attributed to the synergistic interaction between Fe and Co, which is conducive to the thermal decomposition of AP.
中文翻译：
高铁酸盐（NiFe2O4，ZnFe2O4和CoFe2O4）对高氯酸铵热分解的催化活性
通过简便的溶剂热法制备了三种高铁酸盐（NiFe 2 O 4，ZnFe 2 O 4和CoFe 2 O 4），并使用SEM，TEM，XRD，XPS，FT-IR和BET仪器进行了表征。NiFe 2 O 4，CoFe 2 O 4和ZnFe 2 O 4颗粒具有平均粒径分别为70、220和360 nm的中空结构。用DSC和TG-DTG方法研究了高铁酸盐对AP热分解的催化性能，并提出了AP的分解机理。不同高铁酸盐对AP热分解的催化作用明显不同。CoFe 2 O 4具有最佳的催化活性，在存在CoFe 2的情况下，AP的高热分解峰温度（T HDP）和表观活化能（E a）分别降低了108.99°C和37.38 kJ mol -1。Ø 4样品。高铁酸盐的添加对AP的气相分解产物没有明显的影响，但是对AP高温分解的能垒有很大的影响。CoFe 2 O 4优异的催化活性主要归因于Fe与Co之间的协同作用，这有助于AP的热分解。
更新日期：2020-03-22
中文翻译：
高铁酸盐（NiFe2O4，ZnFe2O4和CoFe2O4）对高氯酸铵热分解的催化活性
通过简便的溶剂热法制备了三种高铁酸盐（NiFe 2 O 4，ZnFe 2 O 4和CoFe 2 O 4），并使用SEM，TEM，XRD，XPS，FT-IR和BET仪器进行了表征。NiFe 2 O 4，CoFe 2 O 4和ZnFe 2 O 4颗粒具有平均粒径分别为70、220和360 nm的中空结构。用DSC和TG-DTG方法研究了高铁酸盐对AP热分解的催化性能，并提出了AP的分解机理。不同高铁酸盐对AP热分解的催化作用明显不同。CoFe 2 O 4具有最佳的催化活性，在存在CoFe 2的情况下，AP的高热分解峰温度（T HDP）和表观活化能（E a）分别降低了108.99°C和37.38 kJ mol -1。Ø 4样品。高铁酸盐的添加对AP的气相分解产物没有明显的影响，但是对AP高温分解的能垒有很大的影响。CoFe 2 O 4优异的催化活性主要归因于Fe与Co之间的协同作用，这有助于AP的热分解。
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