We report a viable synthesis route to prepare Co promoted MoS₂ nanocatalyst supported on an activated carbon for the selective hydrodeoxygenation of lignin derived phenolics in a liquid phase. The key aspect of this strategy is to use activated carbon as support with weak metal-support interaction that promotes the formation of Co-Mo-S phase, which is inhibited in alumina supported CoMoS₂ due to the strong metal-support interaction. The as-synthesized catalyst contained Co₉S₈ and MoS₂ phases dispersed on the support, which during reduction at 450 °C formed Co-Mo-S phase that is active for deoxygenation. To validate the claim, the activity of the reduced catalyst was compared with the unreduced catalyst for guaiacol conversion. As such 92 % softwood lignin was converted after 5 h reaction time, producing 76 % liquids with 75 % deoxygenation. The loss of catalytic activity after five catalytic cycles was attributed to the reduction in catalyst surface area, sulphur leaching and metal sintering.

我们报告了一条可行的合成路线，以制备在活性炭上负载有Co促进的MoS ₂纳米催化剂，用于在液相中对木质素衍生的酚进行选择性加氢脱氧。该策略的关键方面是使用活性炭作为具有弱金属-载体相互作用的载体，该相互作用促进了Co-Mo-S相的形成，由于强金属-载体相互作用，该载体在氧化铝负载的CoMoS _2中被抑制。合成后的催化剂包含Co ₉ S ₈和MoS ₂相分散在载体上，在450°C还原过程中形成Co-Mo-S相，对脱氧有活性。为了证实该说法，将还原的催化剂的活性与未还原的催化剂的愈创木酚转化率进行了比较。如此，在5小时的反应时间后，转化了92％的针叶木素木质素，产生了76％的液体，其中有75％的脱氧。五个催化循环后催化活性的下降归因于催化剂表面积的减少，硫的浸出和金属烧结。