Chemical and Texture Promoters in Cu-Fe-Al Oxide Nanocomposite Catalysts for Combustion of Solid Fuel Gasification Products Full article
| Journal |
Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875 |
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| Output data | Year: 2020, Volume: 590, Article number : 117364, Pages count : 8 DOI: 10.1016/j.apcata.2019.117364 | ||||
| Tags | CO oxidation; Copper oxide; Heterogeneous catalysis; Iron oxide; Solid solution | ||||
| Authors |
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| Affiliations |
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Funding (1)
| 1 | Russian Science Foundation | 17-73-20157 |
Abstract:
The Fe-Al and Cu-Fe-Al oxide nanocomposites active in the oxidation of CO were studied by XRD, TEM, EDX, Raman spectroscopy, TPR-H2 and differential dissolution techniques. The nanocomposites were prepared by fusion of aluminum, iron, and copper salts that leads to their inhomogeneity. The Al3+ cations partially dissolve in the Fe2O3 lattice, which leads to a significant decrease in size of iron oxide. Copper locates in the Al-rich agglomerates to form CuO nanoparticles and partially dissolves in alumina. The dissolution of copper in iron oxide and formation of a (Cu,Al,Fe)3O4 spinel was observed only at a high Cu loading. Hence, aluminum plays the role of a textural promoter, preventing sintering and stabilization of the high specific surface area of oxide. Copper does not act as a textural promoter, as it does not affect the crystal size of iron oxide. The addition of Cu increases the catalytic activity of iron oxide-based catalysts. © 2019
Cite:
Bulavchenko O.A.
, Pochtar A.A.
, Gerasimov E.Y.
, Fedorov A.V.
, Chesalov Y.A.
, Saraev A.A.
, Yakovlev V.A.
, Kaichev V.V.
Chemical and Texture Promoters in Cu-Fe-Al Oxide Nanocomposite Catalysts for Combustion of Solid Fuel Gasification Products
Applied Catalysis A: General. 2020. V.590. 117364 :1-8. DOI: 10.1016/j.apcata.2019.117364 WOS Scopus РИНЦ AN OpenAlex
Chemical and Texture Promoters in Cu-Fe-Al Oxide Nanocomposite Catalysts for Combustion of Solid Fuel Gasification Products
Applied Catalysis A: General. 2020. V.590. 117364 :1-8. DOI: 10.1016/j.apcata.2019.117364 WOS Scopus РИНЦ AN OpenAlex
Dates:
| Submitted: | Jul 12, 2019 |
| Accepted: | Nov 22, 2019 |
| Published online: | Nov 23, 2019 |
| Published print: | Jan 25, 2020 |
Identifiers:
| Web of science: | WOS:000509617200030 |
| Scopus: | 2-s2.0-85075797492 |
| Elibrary: | 43213818 |
| Chemical Abstracts: | 2019:2320251 |
| OpenAlex: | W2990205321 |