Bimetallic Au-Li/SAC catalysts for acetylene hydrochlorination

被引：20
作者：
Hu, Di [1 ]
Wang, Lu [1 ]
Wang, Feng [1 ]
Wang, Jide [1 ]
机构：
[1] Xinjiang Univ, Minist Educ & Xinjiang Uyghur Autonomous Reg, Key Lab Oil & Gas Fine Chem, Urumqi 830046, Xinjiang, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2018年 / 115卷
关键词：
VINYL-CHLORIDE; GOLD-CESIUM(I);
D O I：
10.1016/j.catcom.2018.06.025
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A series of Au-Li/SAC catalysts for acetylene hydrochlorination were prepared with HAuCl4 center dot 4H(2)O 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.
引用
收藏
页码：45 / 48
页数：4
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