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- W2952320045 abstract "The oxidative coupling reaction of methane over various metal oxide catalysts has attracted much interest and speculation on plausible reaction mechanisms. We have recently shown that the addition of small amounts of C{sub 2}H{sub 6} to the reactants using Sm{sub 2}O{sub 3} catalysts at 700{degree}C resulted in no significant change in the total CO{sub x} formation, but in a substantial reduction in the net CH{sub 4} conversion. Use of {sup 13}C{sub 2}H{sub 6} also showed that under these conditions a large part of the total CO{sub x} formed was derived from the added {sup 13}C{sub 2}H{sub 6}. We now report that the replacement of {sup 13}C{sub 2}H{sub 6} by {sup 12}C{sub 2}D{sub 6} in similar experiments results in an unusually large effect on the net CH{sub 4} conversion and on the products formed from the CH{sub 4} and the additives. The data confirm the conclusions reached in our previous work, illustrate the dramatic effect that small disturbances in reaction rates have on the product distribution, and suggest that the interpretation of isotope effects in these systems may be more complex than previously thought." @default.
- W2952320045 created "2019-06-27" @default.
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- W2952320045 date "1990-02-13" @default.
- W2952320045 modified "2023-10-08" @default.
- W2952320045 title "ChemInform Abstract: Unusual Deuterium Isotope Effect in the Oxidative Coupling Reaction of Methane Over a Samarium Oxide Catalyst." @default.
- W2952320045 cites W2014648082 @default.
- W2952320045 doi "https://doi.org/10.1002/chin.199007131" @default.
- W2952320045 hasPublicationYear "1990" @default.
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