采用简单的水热法制备了CoO截角立方体.采用X射线粉末衍射仪(XRD)和扫描电镜(SEM)对所合成的CoO进行物相和形貌的表征.研究了反应参数如反应温度和水热时间对CoO的形貌和结构的影响以及实验中对CoO截角立方体的合成控制.对CoO截角立方体的生长机理表明己二醇在CoO的物相形成和形貌控制中起着至关重要的作用. CoO truncated cubes were prepared by a simple hydrothermal method. The phase and morphology of the synthesized CoO were characterized by X-ray powder diffraction (XRD) and scanning electron microscopy (SEM). The reaction parameters such as reaction temperature and The influence of hydrothermal time on the morphology and structure of CoO and the synthesis control of the CoO truncated cube in the experiment.The growth mechanism of the CoO truncated cube indicates that hexanediol plays a role in the phase formation and morphology control of CoO Important role.