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- Title
The Mechanism of Methane Reforming with Carbon Dioxide: Comparison of Supported Pt and Ni (Co) Catalysts.
- Authors
Bychkov, V. Yu.; Tyulenin, Yu. P.; Korchak, V. N.
- Abstract
The interaction of the catalyst 5.16 wt % Pt/α-Al2O3 with СН4, СО2, О2, and СН4 + СО2 pulses is studied using a setup involving the differential scanning calorimeter DSC–111 and a system for chromatographic analysis. Comparison of the results obtained with analogous data on Ni/Al2O3 and Co/Al2O3 suggests that methane activation occurs via a common pathway via dissociative chemisorption on the metal surface with the formation of Н2 and carbon on all the catalysts studied. Carbon dioxide activation on Pt/Al2O3 differs from its activation on Ni(Со)/Al2O3. It follows from the enthalpy of formation that carbon on Pt/Al2O3 is graphite-like in contrast to carbide carbon on Ni(Co)/Al2O3. This graphite carbon is more stable and less reactive.
- Subjects
METHANE; CARBON dioxide; COBALT catalysts; PLATINUM; NICKEL; GRAPHITE
- Publication
Kinetics & Catalysis, 2003, Vol 44, Issue 3, p353
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1023/A:1024494918755