Methane activation over Mn2O3-Na2WO4/SiO2 catalyst and oxygen spillover

被引：55

作者：

Jiang, ZC ^{[1
]}

Gong, H ^{[1
]}

Li, SB ^{[1
]}

机构：

[1] Lanzhou Univ, Lanzhou Inst Chem Phys, Lanzhou 730000, Peoples R China

来源：

SPILLOVER AND MIGRATION OF SURFACE SPECIES ON CATALYSTS | 1997年 / 112卷

关键词：

D O I：

10.1016/S0167-2991(97)80872-5

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 redox mechanism is proposed for the selective oxidation of methane to methyl radical. According to this mechanism, methane activation takes place on the W6+ sites, while activation of gas-phase oxygen occurs on the Mn3+ sites. Owing to the oxygen spillover from Mn2O3 to Na2WO4 surface, the catalytic activity of oxidative coupling of methane to ethylene over Mn2O3-Na2WO4/SiO2 is increased more than 3 times that over Na2WO4/SiO2 catalyst.

引用

页码：481 / 490

页数：10

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