The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation
D A Svintsitskiy
1, 2
,
E M Slavinskaya
1, 2
,
O A Stonkus
1, 2
,
A. V. Romanenko
1
,
A I Stadnichenko
1, 2
,
L S Kibis
1, 2
,
E A Derevyannikova
1
,
A A Evtushkova
2
,
A.I. BORONIN
1, 2
Publication type: Journal Article
Publication date: 2019-06-01
scimago Q4
wos Q4
SJR: 0.211
CiteScore: 1.9
Impact factor: 1.4
ISSN: 00224766, 15738779
Materials Chemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Abstract
The work is related to the fundamental research of the process of ammonia neutralization using catalytic oxidation over Pt/Al2O3 catalysts in an excess of oxygen. The catalysts are synthesized using nitrate precursors on the supports prepared from Pural SCF-55 aluminum hydroxide by the calcination in air at 550°C or 750°C for 4 h. A number of physicochemical methods are used to study morphology, dispersion, structure, and electronic state of the catalyst active component before and after the reduction in hydrogen. It is shown that the synthesized Pt/Al2O3 catalysts are characterized by high dispersion of the active component: the size of deposited platinum particles is in the range from 0.5 nm to 2.0 nm, while the proportion of oxidized and reduced Pt forms varies. Based on the results of kinetic measurements, the catalyst activity and the selectivity to all major products (N2, N2O, NO, NO2) are determined depending on the reaction temperature. The results of the catalytic testing are discussed in relation to the data on dispersion and oxidation state of platinum.
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Total citations:
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Citations from 2024:
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Svintsitskiy D. A. et al. The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation // Journal of Structural Chemistry. 2019. Vol. 60. No. 6. pp. 919-931.
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Svintsitskiy D. A., Slavinskaya E. M., Stonkus O. A., Romanenko A. V., Stadnichenko A. I., Kibis L. S., Derevyannikova E. A., Evtushkova A. A., BORONIN A. The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation // Journal of Structural Chemistry. 2019. Vol. 60. No. 6. pp. 919-931.
Cite this
RIS
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TY - JOUR
DO - 10.1134/S0022476619060064
UR - https://doi.org/10.1134/S0022476619060064
TI - The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation
T2 - Journal of Structural Chemistry
AU - Svintsitskiy, D A
AU - Slavinskaya, E M
AU - Stonkus, O A
AU - Romanenko, A. V.
AU - Stadnichenko, A I
AU - Kibis, L S
AU - Derevyannikova, E A
AU - Evtushkova, A A
AU - BORONIN, A.I.
PY - 2019
DA - 2019/06/01
PB - Pleiades Publishing
SP - 919-931
IS - 6
VL - 60
SN - 0022-4766
SN - 1573-8779
ER -
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BibTex (up to 50 authors)
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@article{2019_Svintsitskiy,
author = {D A Svintsitskiy and E M Slavinskaya and O A Stonkus and A. V. Romanenko and A I Stadnichenko and L S Kibis and E A Derevyannikova and A A Evtushkova and A.I. BORONIN},
title = {The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation},
journal = {Journal of Structural Chemistry},
year = {2019},
volume = {60},
publisher = {Pleiades Publishing},
month = {jun},
url = {https://doi.org/10.1134/S0022476619060064},
number = {6},
pages = {919--931},
doi = {10.1134/S0022476619060064}
}
Cite this
MLA
Copy
Svintsitskiy, D. A., et al. “The State of Platinum and Structural Features of Pt/Al2O3 Catalysts in the Reaction of NH3 Oxidation.” Journal of Structural Chemistry, vol. 60, no. 6, Jun. 2019, pp. 919-931. https://doi.org/10.1134/S0022476619060064.