Study of Ethylene Oligomerization on Bronsted and lewis Acidic Sites of Zeolites Using Diffuse Reflectance IR Spectroscopy

Study of Ethylene Oligomerization on Bronsted and lewis Acidic Sites of Zeolites Using Diffuse Reflectance IR Spectroscopy Full article

Journal

Studies in Surface Science and Catalysis
ISSN: 0167-2991

Output data

Year: 1984, Volume: 18, Pages: 241-247 Pages count : 7 DOI: 10.1016/s0167-2991(09)61160-5

Authors

Kustov L.M. ¹ , Borovkov V.Yu. ¹ , Kazansky V.B. ¹

Affiliations

1	N.D. Zelinsky Institute of Organic Chemistry, Academy of Sciences of the USSR, Moscow (USSR)

Different types of Lewis acidic sites in zeolites (three-coordinated aluminium and silicon atoms of the lattice and extralattice aluminium) were detected by means of the diffuse reflectance IR-spectroscopy using low-temperature adsorption of molecular hydrogen. The lattice Lewis sites unlike the extralattice centres were found to initiate C2H4 oligomerization via a cationic mechanism resulting in formation of branched products. The reaction on the strongest Brönsted acidic sites of the high silica containing zeolites leads to linear oligomers. Ethoxy groups were suggested to be intermediates in this reaction.

Kustov L.M. , Borovkov V.Y. , Kazansky V.B.
Study of Ethylene Oligomerization on Bronsted and lewis Acidic Sites of Zeolites Using Diffuse Reflectance IR Spectroscopy
Studies in Surface Science and Catalysis. 1984. V.18. P.241-247. DOI: 10.1016/s0167-2991(09)61160-5 OpenAlex

OpenAlex:

W2198924867

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