Kinetic Model of the Temperature-Programmed Desorption of Ammonia to Study the Acidity of Heterogeneous Catalysts Full article
| Journal |
Russian Journal of Physical Chemistry A
ISSN: 0036-0244 , E-ISSN: 1531-863X |
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| Output data | Year: 2024, Volume: 98, Number: 13, Pages: 3032–3045 Pages count : 14 DOI: 10.1134/S0036024424702297 | ||||
| Tags | temperature-programmed desorption, kinetics, ammonia, acidity, heterogeneous catalysts, alumina, silicalite-1, titanium silicalite-1 | ||||
| Authors |
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| Affiliations |
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Funding (2)
| 1 | Ministry of Science and Higher Education of the Russian Federation | FWUR-2024-0036 |
| 2 | Правительство Новосибирской области | гр-10 от 18.09.2023 |
Abstract:
A new method for processing the results of the temperature-programmed desorption (TPD) of ammonia from heterogeneous catalyst surfaces and an approach for automatic deconvolution of TPD kinetic curves were proposed. This method uses the Polanyi–Wigner kinetic model with formal kinetics approaches for simple reactions, which imposes restrictions on the observed first, second, or third orders. The parameters of the TPD curves were selected based on the inverse simulation using the Runge–Kutta method and fitting them to experimental points using dynamic model parameter changes. As an example, several heterogeneous catalysts were presented in this work. TPD-NH3 of titanium silicalite-1 and silicalite-1 was obtained using one third-order desorption kinetic equation. TPD-NH3 of three γ-alumina samples was obtained using two desorption peaks with similar kinetic parameters.
Cite:
Lysikov A.I.
, Vdovichenko V.A.
, Vorob’eva E.E.
, Shamanaeva I.A.
, Luzina E.V.
, Piryutko L.V.
, Veselovskaya Z.V.
, Parkhomchuk E.V.
Kinetic Model of the Temperature-Programmed Desorption of Ammonia to Study the Acidity of Heterogeneous Catalysts
Russian Journal of Physical Chemistry A. 2024. V.98. N13. P.3032–3045. DOI: 10.1134/S0036024424702297 WOS Scopus РИНЦ OpenAlex
Kinetic Model of the Temperature-Programmed Desorption of Ammonia to Study the Acidity of Heterogeneous Catalysts
Russian Journal of Physical Chemistry A. 2024. V.98. N13. P.3032–3045. DOI: 10.1134/S0036024424702297 WOS Scopus РИНЦ OpenAlex
Dates:
| Submitted: | Feb 4, 2024 |
| Accepted: | Jul 17, 2024 |
Identifiers:
| Web of science: | WOS:001400872500013 |
| Scopus: | 2-s2.0-85218144523 |
| Elibrary: | 79720809 |
| OpenAlex: | W4406525831 |
Citing:
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