Controlling Activity and Selectivity of Bare ZrO2 in Non-oxidative Propane Dehydrogenation | Sciact - CRIS-system of Boreskov Institute of Catalysis

Controlling Activity and Selectivity of Bare ZrO2 in Non-oxidative Propane Dehydrogenation Full article

Journal

Applied Catalysis A: General
ISSN: 0926-860X , E-ISSN: 1873-3875

Output data

Year: 2019, Volume: 585, Article number : 117189, Pages count : 10 DOI: 10.1016/j.apcata.2019.117189

Tags

Oxygen vacancies; Propane dehydrogenation; Propene; Reducibility; Zirconia

Authors

Otroshchenko Tatiana ¹ , Bulavchenko Olga ² , Thanh Huyen V. ¹ , Rabeah Jabor ¹ , Bentrup Ursula ¹ , Matvienko Alexander ³ , Rodemerck Uwe ¹ , Paul Benjamin ⁴ , Kraehnert Ralph ⁴ , Linke David ¹ , Kondratenko Evgenii V. ¹

Affiliations

1	Leibniz-Institut für Katalyse e.V. an der Universität Rostock (LIKAT), Albert-Einstein-Straße 29a, Rostock, 18059, Germany
2	Boreskov Institute of Catalysis SB RAS, Lavrentieva Pr. 5, Novosibirsk, 630090, Russian Federation
3	Institute of Solid State Chemistry and Mechanochemistry, Kutateladze 18, Novosibirsk, 630128, Russian Federation
4	Technical University of Berlin, Straße des 17. Juni 124, Berlin, 10623, Germany

Funding (2)

1	German Research Foundation	KO 2261/8-1
2	German Academic Exchange Service

A detailed study was carried out on the factors affecting the activity and, particularly, selectivity of bare ZrO2 in the non-oxidative propane dehydrogenation (PDH) to propene. To this end, a series of ZrO2 samples differing in their redox and acidic properties, morphology and phase composition were synthesized by precipitation, sol-gel, glycine-nitrate combustion, template, digestion and calcination methods as well as through controlled thermal decomposition of zirconium oxonitrate. The ability of ZrO2 to release its lattice oxygen in reducing atmosphere was identified as the main factor affecting PDH activity and propene selectivity. This is due to the fact that so generated surface zirconium cations (Zrcus) with lower coordination than their regular counterparts show higher activity for propene formation. As the latter sites strongly contribute to coke formation, the selectivity to this undesired product can be hindered through improving the ability of ZrO2 to generate Zrcus sites under reducing conditions. © 2019 Elsevier B.V.

Otroshchenko T. , Bulavchenko O. , Thanh H.V. , Rabeah J. , Bentrup U. , Matvienko A. , Rodemerck U. , Paul B. , Kraehnert R. , Linke D. , Kondratenko E.V.
Controlling Activity and Selectivity of Bare ZrO2 in Non-oxidative Propane Dehydrogenation
Applied Catalysis A: General. 2019. V.585. 117189 :1-10. DOI: 10.1016/j.apcata.2019.117189 WOS Scopus РИНЦ

Submitted:	Feb 15, 2019
Accepted:	Aug 4, 2019
Published online:	Aug 10, 2019
Published print:	Sep 5, 2019

Web of science	WOS:000485852700012
Scopus	2-s2.0-85070695646
Elibrary	41628231
AN	2019:1603854