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- Title
Formation of Active Structures in Monolith Copper-Manganese Oxide Catalysts for Air-Heating Devices.
- Authors
Shikina, N. V.; Yashnik, S. A.; Gavrilova, A. A.; Dovlitova, L. S.; Khairulin, S. R.; Kozlova, G. S.; Ismagilov, Z. R.
- Abstract
Impregnation catalysts based on CuO, MnOx, and CuO-MnOx with different Cu/Mn ratios supported on ceramic monoliths of alumina and silica are studied by BET, mercury porosimetry, X-ray diffraction analysis, transmission and scanning electron microscopy, temperature-programmed reduction with H2, diffuse reflectance electron spectroscopy, and differential dissolution. It is found that, in the butane oxidation reaction, CuO-MnOx catalysts exert a synergistic effect, which is attributed to the formation of highly defective phases of complex oxides of the nonstoichiometric spinel type with a large number of interparticle boundaries in the near-surface layers of the support.
- Subjects
MANGANESE oxides; CHEMICAL reduction; COPPER catalysts; MANGANESE catalysts; ALUMINUM oxide; SILICA; BUTANE; OXIDATION
- Publication
Kinetics & Catalysis, 2018, Vol 59, Issue 4, p532
- ISSN
0023-1584
- Publication type
Article
- DOI
10.1134/S0023158418040122