NATURE OF ACTIVE-SITES IN THE OXIDATIVE COUPLING OF METHANE TO ETHANE OVER LI/MGO CATALYSTS

被引：19

作者：

WU, MC ^{[1
]}

TRUONG, CM ^{[1
]}

COULTER, K ^{[1
]}

GOODMAN, DW ^{[1
]}

机构：

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

来源：

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS | 1993年 / 11卷 / 04期

关键词：

D O I：

10.1116/1.578388

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The partial oxidation of methane to ethane over a model Li/MgO catalyst has been studied using combined surface science techniques/elevated pressure kinetic measurements. The results indicate that [Li+ O-] centers are not likely directly involved in the methane activation step. Rather, addition of lithium promotes the production of F centers which are considered to be responsible for this key step in the methane coupling reaction.

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页码：2174 / 2178

页数：5

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