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采用HLG-5型纳米化粉碎机批量制备了纳米Cu O。通过X射线衍射仪(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)对Cu O颗粒的结构、大小及形貌进行了表征,并采用差示扫描量热仪(DSC)分别研究了纳米Cu O的含量为1%,1.5%,2%,2.5%,4%对不同粒度AP的热分解性能的影响。结果表明,制备的Cu O颗粒大小约为17nm,为单斜晶系,呈类球形。2%含量的纳米Cu O对AP具有更好的催化性能,可使64μm,6μm,1μm AP的高温分解峰分别降低83.0℃,81℃,55.4℃;表观分解热分别增加880J/g,617J/g,391J/g;反应速度常数提高数倍。
The nano-CuO was prepared in batches using the HLG-5 nano-mill. The structure, size and morphology of CuO particles were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The structures of CuO particles were characterized by differential scanning calorimetry The effects of nano CuO content on the thermal decomposition of AP with different particle sizes were studied. The results showed that the content of CuO was 1%, 1.5%, 2%, 2.5% and 4% respectively. The results show that the prepared CuO particles have a size of about 17 nm and are monoclinic with spherical shape. 2% Cu nanoparticles have better catalytic performance on AP, which can decrease the pyrolysis peak of 64μm, 6μm and 1μm AP by 83.0 ℃, 81 ℃ and 55.4 ℃, respectively; apparent decomposition heat increase by 880J / g and 617J / g, 391J / g; reaction rate constant increased several times.