CuO/PG纳米复合材料的制备及其对AP催化分解性能的影响  

Preparation of CuO/PG Nanocomposites and Their Effect on the Catalytic Decomposition Performance of AP

作　　者：董皓雪 李国平[1] 张晨辉 罗运军[1] DONG Hao-xue;LI Guo-ping;ZHANG Chen-hui;LUO Yun-jun(School of Materials and Science,Beijing Institute of Technology,Beijing100081)

机构地区：[1]北京理工大学材料学院,北京100081

出　　处：《含能材料》2018年第12期1031-1037,共7页Chinese Journal of Energetic Materials

基　　金：国家自然基金委员会与中国工程物理研究院联合基金支持项目(U1630142)

摘　　要：为改善纳米CuO的催化效果,以多孔石墨烯(PG)为载体,采用络合沉淀法分别制备CuO形貌为片状、线状、棒状和球状的CuO/PG纳米复合材料,并通过差示扫描量热法(DSC)测试了CuO/PG纳米复合材料对高氯酸铵(AP)热分解的影响,分析了其催化机理。结果表明,与相同形貌的纳米CuO相比,CuO/PG纳米复合材料的比表面积更大,对AP热分解的催化效果更好。在四种CuO/PG纳米复合材料中,球状氧化铜粒径最小,约4 nm,其复合材料的比表面积最大,约115 m^2·g^(-1),故催化活性位点最多,催化AP分解效果最好,使其高温分解放热峰温度下降至310.1℃。To improve the catalytic effect of nano-CuO,the CuO/PG nanocomposites of CuO morphology as flakes,lines,rods and spheres were prepared by complex precipitation method using porous graphene(PG)as carrier.The effect of CuO/PG nanocomposites on the thermal decomposition of ammonium perchlorate(AP)was investigated by DSC and its catalytic mechanism was analyzed.Results show that compared with the nano-CuO with the same morphology,the CuO/PG nanocomposites have larger specific surface area and better catalytic effect on the thermal decomposition of AP.Among four kinds of CuO/PG nanocomposites,the spherical copper oxide has the smallest particle size,about 4 nm and the specific surface area of the composite is the largest,about 115.25 m2·g-1.Therefore,it has the most active catalytic sites and the best catalytic effect on the thermal decomposition of AP,so that the high temperature exothermic decomposition peak temperature of AP decreases to 310.1℃.

关 键 词：多孔石墨烯(PG) 络合沉淀法 CuO/PG纳米复合材料 高氯酸铵 催化 分解 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TB333[一般工业技术—材料科学与工程]