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- Title
Effect of the interaction of components in a nickelmolybdenum catalyst on its activity in decomposition of methane to hydrogen.
- Authors
Makayeva, N. M.; Yergazieva, G. E.; Anisova, M. M.; Shaimerden, J.; Dossumov, K.
- Abstract
This work is devoted to the study of the activity of monometallic (Fe/Al2O3) and bimetallic (Fe-Mo/Al2O3) catalysts supported to carrier γ- Al2O3. It has been discovered that the bimetallic catalyst is more active than the monometallic catalyst in the methane decomposition reaction. The results of the influence of molybdenum oxide on the activity of Fe/Al2O3 catalyst in the methane decomposition reaction in the temperature range 500-850°C have been obtained. It has been determined that the addition of molybdenum oxide in the amount of 5 wt. % of the iron catalyst composition leads to an increase in the catalytic activity of the sample in the reaction of methanedecomposition to hydrogen at relatively low temperatures. Compared to Fe/Al2O3 on the FeMo/Al2O3 catalyst at a reaction temperature of 750°C, methane conversionincreases from 8% to 98%, hydrogen yield from 5% to 57%. The increased field of activity Fe-Mo/Al2O3catalyst in the decomposition of methane to hydrogen compared to Fe/Al2O3 catalysts is due to an increase in the dispersity of the active phases of the catalyst, as well as the formation of an easily reduced Fe2(M4)3 phase, according to XRD, TPR-H2, and BET methods.
- Subjects
MOLYBDENUM catalysts; CHEMICAL decomposition; BIMETALLIC catalysts; MOLYBDENUM oxides; METHANE analysis
- Publication
Chemical Bulletin of Kazakh National University, 2022, Vol 106, Issue 3, p12
- ISSN
1563-0331
- Publication type
Article
- DOI
10.15328/cb1281