摘要
高氯酸铵是固体推进剂的重要组成部分,利用催化剂对高氯酸铵进行热催化分解是改善高氯酸铵热性能的主要方法。利用化学沉淀法制备出氧化亚铜@多壁碳纳米管(Cu_(2)O@MWCNTs)复合材料。采用XRD、Raman、SEM、TEM、XPS及TG-DTA对Cu_(2)O@MWCNTs复合材料进行表征并研究其对高氯酸铵热分解的催化性能。结果表明:Cu_(2)O纳米粒子成功地附着在MWC⁃NTs表面缺陷位上,且两相间通过Cu_(2)O纳米粒子中铜原子与MWCNTs中羰基氧原子产生了强的相互作用力;Cu_(2)O@MWCNTs复合材料对高氯酸铵热分解有强的促进作用,使高氯酸铵热分解温度降低、分解速度加快且在短时间内完成分解。
Ammonium perchlorate(AP)is an important part of solid propellant.The using of catalyst to catalytic thermal decomposition of AP is the main method to improve the thermal performance of AP.In this research,the cuprous oxide@multi-walled carbon nanotubes(Cu_(2)O@MWCNTs)composites were successfully prepared via a chemical precipitation method.The nanocomposites were tested by X-ray diffractometer(XRD),laser confocal Raman spectrometer(Raman),scanning electron microscope(SEM),transmission electron microscopy(TEM),and X-ray photoelectron spectroscopy(XPS).The catalytic performance of the Cu_(2)O@MWCNTs composites on the thermal decomposition of AP was analyzed by thermogravimetric analysis and differential thermal analyzer(TG-DTA).The results showed that Cu_(2)O nanoparticles were randomly deposited on the MWCNTs,with a strong interaction of a chemical force between Cu atoms belonging to Cu_(2)Onanoparticles and C=O associated with MWCNTs.Moreover,the Cu_(2)O@MWCNTs composites exhibited a great catalytic performance on the thermal decomposition of AP.Such composites may be a promising candidate for catalyzing the thermal decomposition of AP.
作者
张元春
高圣涛
ZHANG Yuanchun;GAO Shengtao(School of Chemical Engineering,Anhui University of Science and Technology,Huainan Anhui China 232001)
出处
《安徽理工大学学报（自然科学版）》
CAS
2022年第3期44-49,共6页
Journal of Anhui University of Science and Technology:Natural Science
基金
国家自然科学基金资助项目(51477002)
