TRANSIENT ISOTOPIC LABELING STUDIES USING (CH4)-C-12 (CH4)-C-13 OVER ALKALI-PROMOTED MOLYBDATE CATALYSTS IN THE OXIDATIVE COUPLING OF METHANE/

Authors
DRISCOLL SA GARDNER DK OZKAN US
Citation
Sa. Driscoll et al., TRANSIENT ISOTOPIC LABELING STUDIES USING (CH4)-C-12 (CH4)-C-13 OVER ALKALI-PROMOTED MOLYBDATE CATALYSTS IN THE OXIDATIVE COUPLING OF METHANE/, Catalysis letters, 25(3-4), 1994, pp. 191-199
Citations number
22
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
25
Issue
3-4
Year of publication
1994
Pages
191 - 199
Database
ISI
SICI code
1011-372X(1994)25:3-4<191:TILSU(>2.0.ZU;2-U
Abstract
The methane coupling reaction was investigated over MnMoO4 and alkali (Li, Na, K)-promoted MnMoO4 at 700-degrees-C using (CH4)-C-12/(CH4)-C- 13 transient isotopic labeling experiments under steady-state reaction conditions. The variations observed in the surface residence times of CH4, CO, and CO2, ethane and ethylene were used to help explain selec tivity differences previously reported in the oxidative coupling of me thane over alkali-promoted molybdate catalysts.