Methane Activation by Zn-Modified Zeolites: Solid-State NMR and DRIFTS Investigation of the Performance of Zn2+ and ZnO Sites | Sciact - CRIS-system of Boreskov Institute of Catalysis

Methane Activation by Zn-Modified Zeolites: Solid-State NMR and DRIFTS Investigation of the Performance of Zn2+ and ZnO Sites Conference Abstracts

Conference

The 8th Tokyo Conference on Advanced Catalytic Science and Technology
05-10 Aug 2018 , Токио

Source

The 8th Tokyo Conference on Advanced Catalytic Science and Technology
Compilation, 2018.

Output data

Year: 2018, Article number : P1231, Pages count : 2

Tags

methane activation, Zn-modified zeolites, solid-state NMR, DRIFTS.

Authors

Gabrienko Anton ^1,2 , Arzumanov Sergei ^1,2 , Freude Dieter ³ , Stepanov Alexander ^1,2

Affiliations

1	Novosibirsk State University, Novosibirsk, 630090, Russia
2	Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
3	Universität Leipzig, Leipzig, 04103, Germany

This work addresses an important problem of methane conversion at Zn-modified zeolites. The mechanism of methane activation has been meticulously investigated with two advanced methods: solid-state NMR and DRIFTS. Particularly, two different types of possible Zn-sites, isolated Zn2+ cations and small ZnO clusters located inside of zeolite channels, have been compared with respect to their ability to activate and convert methane. The kinetics of both H/D exchange of methane-d4 with zeolite Brønsted acid sites and surface Zn-methyl species formation has been monitored with the solid-state NMR approach in situ. DRIFTS has revealed methane specific interactions with Zn-sites.

Gabrienko A. , Arzumanov S. , Freude D. , Stepanov A.
Methane Activation by Zn-Modified Zeolites: Solid-State NMR and DRIFTS Investigation of the Performance of Zn2+ and ZnO Sites
In compilation The 8th Tokyo Conference on Advanced Catalytic Science and Technology. 2018.

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