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

页码：51 / 55

页数：5

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