富勒烯酪氨酸铅盐的制备及其热分解性能  

Preparation and Thermal Decomposition Performance of Fullerene Tyrosine Lead Salt

作　　者：关会娟[1] 彭汝芳[1] 金波[1] 赵凤起[2] 卜兴兵 陈百利[1] 楚士晋[1] 

机构地区：[1]西南科技大学四川省非金属复合与功能材料重点实验室-省部共建国家重点实验室培育基地,四川绵阳621010 [2]西安近代化学研究所,陕西西安710065

出　　处：《精细化工》2014年第2期141-146,151,共7页Fine Chemicals

基　　金：国防基础科研项目(A3120110005;A3120133002);碳纳米材料四川省青年科技创新研究团队(2011JTD0017);国家自然科学基金(51372211)~~

摘　　要：以富勒烯、酪氨酸和硝酸铅为原料合成了一种燃烧催化剂——富勒烯酪氨酸铅盐。采用AAS、FTIR、UVVis、MS及XPS对产物结构进行了表征。采用热重分析法(TGA)和差热分析法(DTA)对目标物的热稳定性进行了研究,结果表明,在动态空气气氛下,富勒烯酪氨酸铅盐的热稳定性良好。采用DTA法,对富勒烯酪氨酸铅盐与改性双基推进剂中主要含能组分RDX的相互作用进行了研究,结果表明,加入富勒烯酪氨酸铅盐后,RDX在不同升温速率(2.5、5、10、20℃/min)下的放热峰值温度降低,分解活化能降低11.06 kJ/mol,表明富勒烯酪氨酸铅盐对RDX的热分解有一定的催化作用。A new combustion catalyst, fullerene tyrosine lead salt,was prepared with fullerenes, tyrosine and lead nitrate as raw materials. Synchronously, the structure of the target product was characterized by means of AAS, FTIR, UV - Vis, MS, and XPS. The thermal stability of fullerene tyrosine lead salt was studied by TGA and DTA, and the results indicate that its thermal stability was good. The interaction between RDX and fullerenes tyrosine lead salt was studied, and it was revealed that fullerenes tyrosine lead salt had a certain catalytic effect on the thermal decomposition of RDX, and that the value of lowering the activation energy of RDX was 11.06 kJ/mol.

关 键 词：富勒烯酪氨酸 富勒烯酪氨酸铅盐 结构表征 热稳定性 催化性能 功能材料 

分 类 号：TQ426.91[化学工程]