KINETIC-STUDIES OF THE OXIDATIVE DIMERIZATION OF METHANE ON THIN-FILM MGO AND LI/MGO

被引：16

作者：

COULTER, K ^{[1
]}

GOODMAN, DW ^{[1
]}

机构：

[1] TEXAS A&M UNIV SYST,DEPT CHEM,COLL STN,TX 77843

来源：

CATALYSIS LETTERS | 1992年 / 16卷 / 1-2期

关键词：

METHANE COUPLING; MAGNESIUM OXIDE; LITHIUM PROMOTION; KINETIC STUDIES;

D O I：

10.1007/BF00764370

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：

The oxidative dimerization of methane to ethane over thin-film MgO and Li/MgO catalysts prepared under well-controlled, ultrahigh vacuum (UHV) conditions has been studied using a combination UHV/reactor cell system that allows elevated pressure kinetic studies and surface science techniques to be employed. Reactions investigating temperature, pressure and pretreatment activation have been performed to determine ethane dependence on each reaction parameter. Agreement between turnover frequencies, activation energies and lithium promotional effects of the thin-film MgO and previously reported results for powdered MgO indicates that the thin-film catalyst is an excellent model catalyst for the oxidative coupling of methane.

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页码：191 / 196

页数：6

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