A series of Au-Li/SAC catalysts for acetylene hydrochlorination were prepared with HAuCl₄⋅4H₂O and LiCl as precursors by an incipient wetness impregnation method and characterized by XRD, BET, TEM, TG, XPS and TPR techniques. It is found that Au1Li0.5/SAC shows the highest activity and stability with the acetylene conversion of 91.3% after 48 h reaction running. The addition of Li can disperse the Au species well and inhibit coke formation on the catalyst surface, Li additives can also inhibit the reduction of active gold species during the reaction time, thereby improving the activity and the long-term stability of gold-based catalysts.

一系列的Au-的Li / SAC催化剂乙炔氢氯化用的HAuCl制备₄ ⋅4H ₂通过初湿含浸法O和氯化锂作为前体和通过XRD，BET，TEM，TG，XPS和TPR技术。发现Au1Li0.5 / SAC表现出最高的活性和稳定性，反应运行48小时后乙炔转化率为91.3％。Li的添加可以很好地分散Au种类并抑制催化剂表面上焦炭的形成，Li添加剂还可以抑制反应期间活性金种类的减少，从而提高金基催化剂的活性和长期稳定性。 。