CoFe_(2)O_(4)/CN的合成及其对奥克托今的催化分解特性  

Synthesis of CoFe_(2)O_(4)/CN and Its Catalytic Decomposition Characteristics for Octogen

作　　者：马海霞[1] 董振 李煜 周雯玉 MA Haixia;DONG Zhen;LI Yu;ZHOU Wenyu(School of Chemical Engineering,Northwest University,Shaanxi Xi'an 710127,China)

机构地区：[1]西北大学化工学院,陕西西安710127

出　　处：《河北师范大学学报（自然科学版）》2024年第6期590-596,共7页Journal of Hebei Normal University：Natural Science

基　　金：陕西省创新团队建设项目(2022T-33);大学生创新创业训练项目(202310697005)。

摘　　要：以氮掺杂多孔碳(CN)为载体,通过原位生长法制备出不同CN含量的CoFe_(2)O_(4)/CN复合材料.采用X射线粉末衍射仪(XRD)、傅立叶变换红外光谱仪(FTIR)、扫描电子显微镜(SEM)及差示扫描量热仪(DSC)等研究材料的晶相、结构、形貌及催化分解性能.结果表明,CoFe_(2)O_(4)均匀分布在CN表面,且紧密接触,CoFe_(2)O_(4)/CN(50)对奥克托今(HMX)的催化分解能力最佳,可使HMX的分解峰温降低23.41℃,表观活化能降低453.28 kJ/mol.The nitrogen doped porous carbon(CN) was used as a carrier to prepare CoFe_(2)O_(4)/CN composites with different CN concentrations by using in situ growth methods.The crystal phase,structure,morphology and catalytic decomposition performance of the products were studied by X-ray powder diffraction(XRD),Fourier transform infrared spectroscopy(FTIR),scanning electron microscopy(SEM) and differential scanning calorimetry(DSC).The results showed that CoFe_(2)O_(4) particles were uniformly distributed on CN through close contact.The CoFe_(2)O_(4)/CN(50) showed the best catalytic decomposition ability for Octogen(HMX),which can reduce the decomposition temperature of HMX by 23.41 ℃ and the apparent activation energy by 453.28 kJ/mol.

关 键 词：氮掺杂多孔碳 铁酸钴 复合材料 催化分解 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TQ560.1[化学工程—炸药化工] O64[理学—物理化学]