ETHYLENE-D4 synthesis
- Product Name:ETHYLENE-D4
- CAS Number:683-73-8
- Molecular formula:C2D4
- Molecular Weight:32.08
1632-99-1
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683-73-8
31 suppliers
$504.99/5MG
124-38-9
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$175.00/23402
Yield:-
Reaction Conditions:
with nickel(II) oxide;oxygen at 450;Mechanism;Activation energy;Inert atmosphere;Reagent/catalyst;
Steps:
2.2. Isotopic studies
Experiments with deuterated ethane C2D6 (2% C2D6/He, CortecNet; 99% atom enrichment) and ethylene C2D4 (2% C2D4/He, CortecNet; 99% atom enrichment) were conducted over NiO and Ni0.85Nb0.15Ox in order to investigate the existence of kinetic isotope effect. For exploring ethane activation, experiments with 1% C2D6/1%O2/He, 1%C2H6/1%O2/He, and 0.5%C2D6/0.5%C2H6/1%O2/He feed were carried out. Additional isothermal experiments were also conducted over both samples that involved switching from 1%C2H6/1%O2/He feed to 1%C2D6/1%O2/He feed. Temperature-programmed experiments with 1%C2D4/1%O2/He, 1%C2H4/1%O2/He, and 0.5%C2D4/0.5%C2H4/1%O2/He feeds were conducted to study ethylene conversion pathways. The kinetic isotope effects were calculated as the ratio of normal hydrocarbon (C2H6 or C2H4) consumption rate to deuterated hydrocarbon (C2H6 or C2D4) consumption rate under identical conditions. The experimental procedure involved catalyst pretreatment under 10% O2/He flow at 450 °C for 30 min, followed by subsequent cooling to room temperature under He flow. Finally, the temperature was raised to 450 °C at a heating rate of 10 °C/min under a total flow of 50 cm3/min of the appropriate composition. The reactor exit was monitored online by mass spectrometry (Omnistar, Balzers) by following m/z signals: 4 (He), 36 (18O2, C2D6), 34 (18O16O), 32 (16O2), 30 (C2H6), 24 (C2H4), 18 (H2O), 44 (CO2), 26 (C2D4). Overlapping fragmentation contributions of various gas compounds were taken into account.
References:
Skoufa;Heracleous;Lemonidou [Journal of Catalysis,2015,vol. 322,p. 118 - 129]
1070-74-2
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683-73-8
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22581-63-1
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683-73-8
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1517-52-8
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683-73-8
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6157-20-6
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1516-08-1
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$35.00/1ml
683-73-8
31 suppliers
$504.99/5MG