过渡金属硫化物催化剂催化加氢作用机理

Transition Metal Sulfides Hydrogenation Catalysts: Active Phase Structure and Mechanism of the Catalytic Reaction

负载型过渡金属(Co、Mo、Ni、W)硫化物催化剂广泛应用于石油炼制催化加氢过程。为了开发高性能的加氢催化剂,过渡金属硫化物催化剂催化活性相的结构与加氢脱硫性能的关系一直以来是催化研究的热点之一。本文从过渡金属硫化物催化剂的活性相结构和反应物在催化剂表面活性位上的吸附-催化反应机理两个方面阐述了过渡金属硫化物催化剂的催化作用研究进展,并对过渡金属硫化物催化剂催化机理研究存在的争议和未来的研究方向进行了分析。

The supported catalysts of transition metal sulfides （TMS） are applied in the petroleum refining processes extensively. In order to aid the development of catalysts for hydrodesulfurization （ HDS）, there has been a strong emphasis in the past on establishing fundamental relationships between the structure of the catalyst and the HDS activity. In this paper, the progress of research is reviewed from two aspects： the structure of the active phase and the mechanism of adsorption-to-reaction of reactants on the active sites at the surface of TMS catalysts. The controversies in the research of catalysis of transition metal sulfides and the directions in the future are also propounded.