Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol | Sciact - CRIS-system of Boreskov Institute of Catalysis

Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol Full article

Journal

Energies
ISSN: 1996-1073

Output data

Year: 2020, Volume: 13, Number: 14, Article number : 3728, Pages count : 20 DOI: 10.3390/en13143728

Tags

methane dry reforming; Ce-Zr oxide; synthesis in supercritical isopropanol; Ni loading

Authors

Pavlova Svetlana ^1,2 , Smirnova Marina ^1,2 , Bobin Aleksei ^1,2 , Cherepanova Svetlana ^1,2 , Kaichev Vasily ^1,2 , Ishchenko Arcady ^1,2 , Selivanova Aleksandra ¹ , Rogov Vladimir ^1,2 , Roger Anne-Cécile ³ , Sadykov Vladislav ^1,2

Affiliations

1	Boreskov Institute of Catalysis, prosp. Akad. Lavrentieva 5, 630090 Novosibirsk, Russia
2	Department of Natural Sciences, Novosibirsk state University, Pirogova street 1, 630090 Novosibirsk, Russia
3	Institute of Chemistry and Processes for Energy, Environment and Health, University of Strasbourg, 4 rue Blaise Pascal, F-67081 Strasbourg, France

Funding (2)

1	Federal Agency for Scientific Organizations	0303-2016-0013
2	European Commission	ERA.Net RUS Plus - NICE

A series of 5%Ni-CexZr1−xO2 (x = 0.3, 0.5, 0.7) catalysts has been prepared via one-pot solvothermal continuous synthesis in supercritical isopropanol and incipient wetness impregnation of CexZr1−xO2 obtained by the same route. The textural, structural, red-ox, and catalytic properties in methane dry reforming (MDR) of Ni-modified Ce-Zr oxides synthesized by two routes have been compared. It was shown by XRD, TEM, and Raman spectroscopy that the method of Ni introduction does not affect the phase composition of the catalysts, but determines the dispersion of NiO. Despite a high dispersion of NiO and near-uniform distribution of Ni within Ce-Zr particles observed for the one-pot catalysts, they have shown a lower activity and stability in MDR as compared with impregnated ones. This is a result of a low Ni concentration in the surface layer due to segregation of Ce and decoration of nickel nanoparticles with support species.

Pavlova S. , Smirnova M. , Bobin A. , Cherepanova S. , Kaichev V. , Ishchenko A. , Selivanova A. , Rogov V. , Roger A-C. , Sadykov V.
Structural, Textural, and Catalytic Properties of Ni-CexZr1−xO2 Catalysts for Methane Dry Reforming Prepared by Continuous Synthesis in Supercritical Isopropanol

Energies. 2020. V.13. N14. 3728 :1-20. DOI: 10.3390/en13143728 WOS Scopus РИНЦ AN OpenAlex

Full text from publisher

Submitted:	May 12, 2020
Accepted:	Jul 15, 2020
Published print:	Jul 20, 2020
Published online:	Jul 20, 2020

Web of science:	WOS:000557988700001
Scopus:	2-s2.0-85089804146
Elibrary:	45384899
Chemical Abstracts:	2020:2041391
OpenAlex:	W3043304694

DB	Citing
Web of science	8
Scopus	8
Elibrary	7
OpenAlex	8