Nitrous Oxide Adsorption and Decomposition on Zeolites and Zeolite-like Materials

Decomposition of N<sub>2</sub>O on modified zeolites, crystalline titanosilicalites, and related amorphous systems is studied by the catalytic and spectroscopic methods. Zinc-containing HZSM-5 zeolites and titanosilicalites with moderate Ti/Si ratios are shown to exhibit a better catalyt...

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Bibliografske podrobnosti
Main Authors: Leonid M. Kustov, Sergey F. Dunaev, Alexander L. Kustov
Format: Article
Jezik:English
Izdano: MDPI AG 2022-01-01
Serija:Molecules
Teme:
Online dostop:https://www.mdpi.com/1420-3049/27/2/398
Opis
Izvleček:Decomposition of N<sub>2</sub>O on modified zeolites, crystalline titanosilicalites, and related amorphous systems is studied by the catalytic and spectroscopic methods. Zinc-containing HZSM-5 zeolites and titanosilicalites with moderate Ti/Si ratios are shown to exhibit a better catalytic performance in N<sub>2</sub>O decomposition as compared with conventionally used Cu/HZSM-5 zeolites and amorphous Cu-containing catalysts. Dehydroxylation of the HZSM-5 zeolite by calcination at 1120 K results in an enhancement of the N<sub>2</sub>O conversion. The mechanism of the reaction and the role of coordinatively unsaturated cations and Lewis acid sites in N<sub>2</sub>O decomposition are discussed on the basis of the spectroscopic data.
ISSN:1420-3049