A nitrogen-doped carbon-supported cobalt oxide catalyst is able to oligomerize ethylene, propylene, 1-butene and 1-hexene into mixtures of oligomers with above 94.1% dimers. Higher than 72.5% of the dimers produced from 1-butene and 1-hexene are internal linear olefins, while the dimer products from propylene oligomerization are 47.0% linear including 5.9% 1-hexene. Ethylene had the highest oligomerization activity with 56.1–87.0% 1-butene selectivity. The selectivity to linear alpha olefins decreases with an increasing oligomer chain length during ethylene oligomerization. The oligomers formed from ethylene conversion follow a Schulz-Flory distribution. Cossee type mechanism rationalizes the product selectivity from the four olefin feeds, suggesting that a 1,2-2,1 insertion sequence is critical to obtaining linear olefin products. The catalyst was inactive in oligomerizing internal olefins.

氮掺杂的碳负载的氧化钴催化剂能够将乙烯，丙烯，1-丁烯和1-己烯低聚为具有94.1％以上二聚体的低聚物混合物。由1-丁烯和1-己烯制得的二聚体中高于72.5％是内部线性烯烃，而来自丙烯低聚的二聚体产物为47.0％呈线性，包括5.9％的1-己烯。乙烯具有最高的低聚活性，其对1-丁烯的选择性为56.1-87.0％。在乙烯低聚过程中，对直链α-烯烃的选择性随着低聚物链长的增加而降低。由乙烯转化形成的低聚物遵循Schulz-Flory分布。Cossee类型机理使四种烯烃进料的产物选择性合理化，这表明1,2-2,1插入顺序对于获得线性烯烃产物至关重要。