Email this article Interaction of ethanol with the surface of nickel supported catalysts as determined by in situ IR-spectroscopy
- Authors: Matyshak V.A.1, Silchenkova O.N.1, Bykhovsky M.Y.1, Bychkov V.Y.1
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Affiliations:
- Semenov Federal Research Center for Chemical Physics RAS
- Issue: Vol 66, No 3 (2025)
- Pages: 225-234
- Section: ARTICLES
- URL: https://journals.rcsi.science/0453-8811/article/view/352868
- DOI: https://doi.org/10.31857/S0453881125030074
- ID: 352868
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Abstract
The application of IR spectroscopy in situ enabled the identification of ethoxy groups, acetate complexes, and complex products on the surface of nickel supported catalysts during the ethanol decomposition reaction in the range of 250–325°C. Ethoxy groups are formed according to the classical scheme with the participation of hydroxyl groups of the surface and are localized along the boundaries of metal clusters. The source of formation of acetate complexes are ethoxy groups. Complex surface compounds formed due to the condensation reaction of CH2 groups prevent surface carbonization. Surface complexes activated by adsorption diffuse onto metal clusters, where they undergo further transformations. The dependence of the concentration of ethoxy groups on time under ethanol conversion conditions is not processed in either first- or second-order coordinates. Apparently, ethoxy groups are involved in several surface reactions. The intensity dependence of the absorption band of acetates is processed in the coordinates of the first-order equation.
About the authors
V. A. Matyshak
Semenov Federal Research Center for Chemical Physics RASKosygina str., 4, Moscow, 119991 Russia
O. N. Silchenkova
Semenov Federal Research Center for Chemical Physics RAS
Email: son1108@yandex.ru
Kosygina str., 4, Moscow, 119991 Russia
M. Y. Bykhovsky
Semenov Federal Research Center for Chemical Physics RASKosygina str., 4, Moscow, 119991 Russia
V. Y. Bychkov
Semenov Federal Research Center for Chemical Physics RASKosygina str., 4, Moscow, 119991 Russia
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