Synthesis and Investigation of Nickel–Aluminum Oxide Catalysts on a Carbon Support

Synthesis and Investigation of Nickel–Aluminum Oxide Catalysts on a Carbon Support

Samples of catalysts obtained by impregnating activated carbon with the oxides NiO and Al 2 O 3 were investigated. It was shown that increase in the ratio of nickel and aluminum cations in the impregnating solution from 2:1 to 3:1 leads to decrease in the average pore diameter and to increase in the...

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Bibliographic Details
Published in:Chemistry and technology of fuels and oils Vol. 58; no. 2; pp. 283 - 288
Main Authors: Moiseeva, E. G., Il’menskii, A. S., Mishagin, K. A., Petrov, S. M., Lakhova, A. I., Bashkirtseva, N. Yu
Format: Journal Article
Language:English
Published: New York Springer US 01-05-2022
Springer
Springer Nature B.V
Subjects:
Activated carbon
Aluminum
Aluminum oxide
Catalysts
Cations
Chemistry
Chemistry and Materials Science
Geotechnical Engineering & Applied Earth Sciences
Heat treatment
Hydrogen
Impregnation
Industrial Chemistry/Chemical Engineering
Investigations
Kinetics and Catalysis
Mineral Resources
Nickel
Pore size
Specific surface
Surface area
Ultrasonic processing
nickel oxides
active carbons
aluminum oxides
specific surface area
microscopy
pore sizes
X-ray diffraction analysis
thermal analysis
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Summary:Samples of catalysts obtained by impregnating activated carbon with the oxides NiO and Al 2 O 3 were investigated. It was shown that increase in the ratio of nickel and aluminum cations in the impregnating solution from 2:1 to 3:1 leads to decrease in the average pore diameter and to increase in the specific surface area of the activated carbon by 1.5 times. Activated carbons impregnated by nickel and aluminum oxides with the metal cation of the impregnating solution in a ratio of 3:1 and calcined in a stream of hydrogen have the largest surface area in pores with diameter of 10-200 nm. Heat treatment of the nickel–aluminum oxide catalysts on a carbon support at 450°С in a stream of hydrogen leads to increase of the pore size and to decrease of the specific surface area. Mechanical activation of the oxide catalysts on the carbon support by ultrasonic treatment increases the outer surface area of the particles by more than twice.
ISSN:0009-3092
1573-8310
DOI:10.1007/s10553-022-01380-w