Hierarchical flower-like cobalt tetroxide (Co₃O₄) was successfully synthesized via a facile precipitation method in combination with heat treatment of the cobalt oxalate precursor. The samples were systematically characterized by thermo gravimetric analysis and derivative thermo gravimetric analysis (TGA-DTG), X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and N₂ adsorption-desorption measurements. The results indicate that the as-fabricated Co₃O₄ exhibits uniform flower-like morphologies with diameters of 8∼12 μm, which are constructed by one-dimensional nanowires. Furthermore, catalytic effect of this hierarchical porous Co₃O₄ on ammonium perchlorate (AP) pyrolysis was investigated using differential scanning calorimetry (DSC) techniques. It is found that the pyrolysis temperature of AP shifts 142 °C downward with a 2 wt% addition content of Co₃O₄. Meanwhile, the addition of Co₃O₄ results in a dramatic reduction of the apparent activation energy of AP pyrolysis from 216 kJ mol^-1 to 152 kJ mol^-1, determined by the Kissinger correlation. The results endorse this material as a potential catalyst in AP decomposition.

通过简便的沉淀方法与草酸钴前体的热处理相结合，成功地合成了花状四氧化_三钴（Co ₃ O ₄）。通过热重分析和导数热重分析（TGA-DTG），X射线粉末衍射（XRD），场发射扫描电子显微镜（FESEM），透射电子显微镜（TEM）和N ₂吸附-解吸测量。结果表明，经制备的Co ₃ O ₄具有均匀的花状形态，直径为8〜12μm，由一维纳米线构成。此外，该分级多孔Co的催化作用使用差示扫描量热法（DSC）技术研究了高氯酸铵（AP）热解过程中的₃ O ₄。发现AP的热解温度在Co ₃ O _4的添加量为2重量％的情况下下降了142℃ 。同时，通过基辛格相关性确定，Co ₃ O _4的添加导致AP热解的表观活化能从216 kJ mol ^-1显着降低到152 kJ mol ^-1。结果证明该材料是AP分解的潜在催化剂。