| Autor: |
Lafer, L. I., Dykh, Zh. L., Yakerson, V. I., Sitnik, V. P., Vasina, T. V., Bragin, O. V. |
| Zdroj: |
Russian Chemical Bulletin; March 1989, Vol. 38 Issue: 3 p459-463, 5p |
| Abstrakt: |
1.The Zn-pentasil system was studied by IR spectroscopy based on adsorption of pyridine. It was shown that zinc ions enter cation-exchange sites which are strong B sites. The Zn-HTsVM system is characterized in the general case by the presence of two types of B sites (strongly and weakly acid) and three types of L sites (lattice, Zn2+ in cation-exchange sites, and Zn2+ in the composition of the excess ZnO phase or cluster).2.The catalytic activity of HTsVM and Zn-HTsVM was studied in reactions of transformation of ethane. The aromatizing activity increases on addition of Zn2+ and attains the maximum with total exchange of protons in the cation-exchange sites for Zn2+. The Zn2+ ions not entering cation-exchange sites drive side reactions of methane formation and condensation. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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