用铁盐或钴盐沉淀所制得的传统费—托催化剂将合成气转化为正烷烃或烯烃时,分子量范围分布广。能够缩小产品分布的方法则又涉及到催化剂表面金属颗粒尺寸的控制。正如Basset等人所指出的,通过负载金属簇催化剂可达到此目的。将HF_3- Conventional Fischer-Tropsch catalysts prepared by precipitation with iron salts or cobalt salts have a wide molecular weight range when converting syngas to n-alkanes or alkenes. The way to reduce product distribution is in turn the control of the size of the metal particles on the surface of the catalyst. As pointed out by Basset et al., This can be achieved by supporting metal cluster catalysts. HF_3-