Methane Dry Reforming over Ni Catalysts Supported on Ce–Zr Oxides Prepared by a Route Involving Supercritical Fluids | Sciact - CRIS-system of Boreskov Institute of Catalysis

Methane Dry Reforming over Ni Catalysts Supported on Ce–Zr Oxides Prepared by a Route Involving Supercritical Fluids Full article

Journal

Open Chemistry
ISSN: 2391-5420

Output data

Year: 2017, Volume: 15, Number: 1, Pages: 412-425 Pages count : 14 DOI: 10.1515/chem-2017-0046

Tags

Ce-Zr-O oxide, synthesis in supercritical isopropanol, Ni loading, characterization, catalytic properties in methane dry reforming

Authors

Smirnova Marina Yu. ^1,2 , Bobin Aleksei S. ^1,2 , Pavlova Svetlana N. ¹ , Ishchenko Arcady V. ^1,2 , Selivanova Aleksandra V. ¹ , Kaichev Vasilii V. ^1,2 , Cherepanova Svetlana V. ^1,2 , Krieger Tamara A. ^1,2 , Arapova Marina V. ¹ , Roger Anne-Cecile ³ , Adamski Andrzej ⁴ , Sadykov Vladislav A. ^1,2

Affiliations

1	Boreskov Institute of Catalysis, Novosibirsk, 630090, Russia
2	Novosibirsk State University, Novosibirsk, 630090, Russia
3	University of Strasbourg, Strasbourg, F-67087, France
4	Jagiellonian University, Krakow, Poland

Funding (2)

1	The Ministry of Education and Science of the Russian Federation	14.616.21.0036
2	European Commission	ERA.Net RUS Plus - NICE

Ce0.5Zr0.5O2 mixed oxides were prepared in a flow reactor in supercritical isopropanol with acetylacetone as a complexing agent. Variation of the nature of the Zr salt and the temperature of synthesis affected the phase composition, morphology and specific surface area of oxides. X-ray diffraction and Raman spectroscopy studies revealed formation of metastable t" and t' phases. Oxides are comprised of agglomerates with sizes depending on the synthesis parameters. Loading NiO decreases the specific surface area without affecting X-ray particle sizes of supports. Such sintering was the most pronounced for a support with the highest specific surface area, which resulted in the lowest surface content of Ni as estimated by X-ray photoelectron spectroscopy and in the formation of flattened NiO particles partially embedded into the support. The catalytic activity and stability of these samples in the dry reforming of methane were determined by the surface concentration of Ni and the morphology of its particle controlled by the metal-support interaction, which also depends on the type of catalyst pretreatment. Samples based on ceria-zirconia oxides prepared under these conditions provide a higher specific catalytic activity as compared with the traditional Pechini route, which makes them promising for the practical application.

Smirnova M.Y. , Bobin A.S. , Pavlova S.N. , Ishchenko A.V. , Selivanova A.V. , Kaichev V.V. , Cherepanova S.V. , Krieger T.A. , Arapova M.V. , Roger A-C. , Adamski A. , Sadykov V.A.
Methane Dry Reforming over Ni Catalysts Supported on Ce–Zr Oxides Prepared by a Route Involving Supercritical Fluids

Open Chemistry. 2017. V.15. N1. P.412-425. DOI: 10.1515/chem-2017-0046 WOS Scopus РИНЦ AN OpenAlex

Full text from publisher

Published print:	Jan 1, 2017
Submitted:	Jul 20, 2017
Accepted:	Nov 29, 2017
Published online:	Dec 29, 2017

Web of science:	WOS:000424997500011
Scopus:	2-s2.0-85052023502
Elibrary:	35727678
Chemical Abstracts:	2019:681323
OpenAlex:	W2792922973

DB	Citing
Web of science	17
Scopus	18
Elibrary	18
OpenAlex	17