四唑锰配合物热动力学参数及催化燃烧性能研究  

Thermokinetic Parameter and Catalytic Combustion Performance of Tetrazolate Manganese Complex

作　　者：张引莉[1] 范广[1] 高丰琴[1] 马占营[1] 李泽凡 Zhang Yinli;Fan Guang;Gao Fengqin;Ma Zhanying;Li Zefan(College of Chemistry&Chemical Engineering,Xianyang Normal University,Xianyang,Shaanri712000,China)

机构地区：[1]咸阳师范学院化学与化工学院,陕西咸阳712000

出　　处：《化学世界》2022年第5期276-281,共6页Chemical World

基　　金：科研工作创新专项(No.XSYK20037);创新训练(Nos.2017072,10722064)资助项目。

摘　　要：以5-(2′-吡啶基)四唑(pdta)为配体,制备了一个Mn(Ⅱ)的配合物[Mn(pdta)(HO)]。采用热重-差示扫描量热法(TG-DSC法)分析了Mn(Ⅱ)配合物的热分解行为;探究了Mn(Ⅱ)配合物对奥克托今(HMX)和高氯酸铵(AP)的热分解过程的影响。在非等温条件下,估算出Mn(Ⅱ)配合物放热分解时的表观活化能(E=240 kJ·mol)、活化焓、活化自由能与活化熵,以及表征含能材料热安定性的热爆炸临界温度(T=669.0 K)和自加速分解温度(T=653.5 K)。结果表明,Mn(Ⅱ)配合物属于热安全性较好的含能配合物,并且对AP具有较好催化燃烧效果。A Mn(Ⅱ) complex [Mn(pdta)(HO)] was prepared with 5-(2′-pyridyl) tetrazole(pdta) ligand. The thermal decomposition behavior was studied by thermogravimetric and differential scanning calorimetry(TG-DSC). The effect of Mn(Ⅱ) complex on the thermal decomposition of octagon(HMX) and ammonium perchlorate(AP) was investigated. Under non-isothermal conditions, some parameters of Mn(Ⅱ) complex including apparent activation energy(E=240 kJ·mol), activation enthalpy, activation free energy and activation entropy on exothermic decomposition, thermal explosion critical temperature(T=669.0 K) and self-accelerating decomposition temperature(T=653.5 K) were estimated. The results showed that the energetic Mn(Ⅱ) complex has good thermal safety, and good catalytic combustion effect for AP.

关 键 词：含能配合物 5-(2′-吡啶基)四唑 非等温动力学 催化燃烧 

分 类 号：O61[理学—无机化学]