We review scientific works carried out on the influence of surface hydrophobicity on activity and product selectivity of supported cobalt and iron catalysts during Fischer-Tropsch synthesis (FTS). The characteristics of the surface of catalyst support may influence metal-support interactions, which leads to various degrees of metal dispersion and reducibility. Also, these support surface properties may influence the mass transfer of reactants and products at the catalyst active sites and subsequently affects the performance of the catalyst during FTS. Pre-silylated and post-silylated catalysts have been used to study the influence of surface hydrophobicity on the performance of FTS catalysts. The enhancement of FTS activity by hydrophobicity was mainly ascribed to the improved reducibility of metal oxide species. Furthermore, post-silylated supported iron catalysts favoured the suppression of water-gas shift (WGS) reaction, thereby hindering CO₂ formation.

中文翻译：

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疏水性对费-托合成催化剂的影响

我们回顾了费托合成（FTS）过程中表面疏水性对负载的钴和铁催化剂的活性和产物选择性的影响的科学工作。催化剂载体表面的特性可能会影响金属与载​​体的相互作用，从而导致各种程度的金属分散和还原性。而且，这些载体表面性质可影响催化剂活性部位处反应物和产物的传质，并随后影响FTS期间催化剂的性能。前硅烷化和后硅烷化的催化剂已用于研究表面疏水性对FTS催化剂性能的影响。通过疏水性增强FTS活性主要归因于金属氧化物种类的还原性提高。此外，₂阵型。