Porous Co₃O₄ with high yield was synthesized through calcination from plate-like Co(OH)(OCH₃). Then, a series of Co₃O₄ supported RuO_x catalysts were prepared using three different loading methods, including homogeneous precipitation (HP), precipitation-deposition (DP), and wet impregnation (IM). Their physicochemical properties were investigated by various characterization techniques, and their performance for catalytic oxidation of 1, 2-dichloroethane (1, 2-DCE) was also evaluated. RuO_x/Co₃O₄-HP possessed the most outstanding low-temperature reducibility, more oxygen vacancies, and surface active oxygen, correspondingly exhibited a better catalytic activity and lower selectivity of polychlorinated by-products. Moreover, RuO_x/Co₃O₄-HP also presented an excellent performance for other types of hydrocarbons abatement. The stability test showed that the RuO_x/Co₃O₄-HP showed highly stable activity for 1, 2-DCE oxidation, and the beneficial effect of water was further confirmed.

以片状Co(OH)(OCH ₃ )为原料，通过煅烧合成了高收率的多孔Co ₃ O ₄。然后，使用三种不同的负载方法制备了一系列Co ₃ O ₄负载的RuO _x催化剂，包括均相沉淀（HP）、沉淀-沉积（DP）和湿浸渍（IM）。通过各种表征技术研究了它们的理化性质，还评估了它们催化氧化 1, 2-二氯乙烷 (1, 2-DCE) 的性能。RuO _x /Co ₃ O ₄-HP 具有最突出的低温还原性、更多的氧空位和表面活性氧，相应地表现出更好的催化活性和更低的多氯副产物选择性。此外，RuO _x /Co ₃ O ₄ -HP 在其他类型的碳氢化合物减排方面也表现出优异的性能。稳定性测试表明，RuO _x /Co ₃ O ₄ -HP 对 1, 2-DCE 氧化表现出高度稳定的活性，进一步证实了水的有益作用。