An MoS_x Structure with High Affinity for Adsorbate Interaction

摘要

MoS2 is an intriguing material: although its basal plane is quite inert, it is the key catalyst for petrochemical hydro-desulfurization (and hydrodenitrogenation) processes. Dow/ Union Carbide developed an MoS2-based catalyst for the formation of higher alcohols from syngas, an application which is gaining increased importance with the emergence of biofuels. In these applications, MoS2 is used as a fine powder; cobalt or nickel (or mixtures thereof) activate the powder through incorporation into edges of the MoS2 structures. Further promotion is achieved by alkali doping with carbon typically serving as the support. Quite recently, MoS2 has attracted increasing interest as an exfoliatable monolayer material for (opto-)electronic applications, and as a surface material for electrochemical reactions, among other applications.