A selective aerobic oxidative cleavage of CC bond is developed with black nickel oxide (NiO_x) as the catalyst. For the oxidation of 1-phenyl-1, 2-ethanediol, a 97.5% conversion in 96.7% selectivity of benzaldehyde is obtained under 0.3 MPa of O₂ at 140 °C for 3 h. The relationship between the catalytic performance of NiO_x and structure is discussed. It is concluded that the existence of Ni³⁺ should be crucial to the activity of catalyst. Moreover, the recycling experiments showed that the catalyst can retain a high activity even after being reused for five times.

中文翻译：

---

在分子氧存在下由黑色氧化镍介导的C C键的新型选择性氧化裂解

以黑色氧化镍（NiO _x）为催化剂，进行了C C键的选择性好氧氧化裂解。对于1-苯基-1，2-乙二醇的氧化，在0.3 MPa的O _2下在140°C的条件下3 h可获得97.5％的苯甲醛选择性的99.7％转化率。讨论了NiO _x的催化性能与结构之间的关系。结论是，Ni ³⁺的存在对催化剂的活性至关重要。此外，再循环实验表明，即使重复使用五次，该催化剂也可以保持高活性。