Isotopic labeling studies of C and O atoms for methane oxidative coupling over II-La2O2CO3

R. Paul Taylor, Glenn L. Schrader

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

The role of II-La2O2CO3 for the oxidative coupling of methane (OCM) was examined by determining the reactivity for the C and O atoms of the (CO3)2- groups of II-La2O2CO3. 18O- and 13C-labeled materials were prepared for these studies. During OCM, the C atoms in the catalyst were the source of 46% of the CO2 produced. No C atoms originating in the catalyst appeared in the hydrocarbon products. The O atoms present in the (CO3)2- layers of the catalyst also appeared in CO2 and CO during OCM. 18O accounted for 48.5% of all oxygen detected in carbon dioxide produced over 18O-labeled phases. Oxygen exchange was observed to occur with O2 in the feed.

Original languageEnglish (US)
Pages (from-to)235-240
Number of pages6
JournalStudies in Surface Science and Catalysis
Volume81
Issue numberC
DOIs
StatePublished - Jan 1 1994

    Fingerprint

ASJC Scopus subject areas

  • Catalysis
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this