Direct conversion of ethane to ethylene oxide over NiAgYO catalyst

被引：4
|
作者：
Gao, Jing [1 ]
Zhou, DiShan [1 ]
Wu, Ying [1 ]
Wu, TingHua [1 ]
机构：
[1] Zhejiang Normal Univ, Inst Phys Chem, Zhejiang Key Lab React Chem Solid Surfaces, Jinhua 321004, Peoples R China
来源：
CATALYSIS COMMUNICATIONS | 2013年 / 30卷
关键词：
Ethylene oxide; Direct conversion; Ethane; NiAgYO; OXIDATIVE DEHYDROGENATION; SELECTIVE OXIDATION; SILVER CATALYSTS; MOLECULAR-OXYGEN; MIXED OXIDES; EPOXIDATION; SURFACE; ETHENE; Y2O3; CL;
D O I：
10.1016/j.catcom.2012.10.023
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：
NiAgYO catalyst prepared using sol-gel method exhibited better catalytic behavior than NiAgO for the direct conversion of ethane to ethylene oxide (EO). An optimal EO yield of 7.6% with 19.8% selectivity was obtained at 290 degrees C. The catalysts were characterized by X-ray diffraction (XRD), H-2 temperature-programmed reduction (H-2-TPR), O-2 temperature-programmed desorption (O-2-TPD), and X-ray photoelectron spectroscopy (XPS). The results showed that the interaction between Y and Ag made the absorbed oxygen species hold proper electrophilic character, thereby improving the performance of the NiAgYO catalyst. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：51 / 55
页数：5
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