Ni–Ru-Containing Mixed Oxide-Based Composites as Precursors for Ethanol Steam Reforming Catalysts: Effect of the Synthesis Methods on the Structural and Catalytic Properties | Sciact - CRIS-system of Boreskov Institute of Catalysis

Ni–Ru-Containing Mixed Oxide-Based Composites as Precursors for Ethanol Steam Reforming Catalysts: Effect of the Synthesis Methods on the Structural and Catalytic Properties Full article

Journal

Open Chemistry
ISSN: 2391-5420

Output data

Year: 2021, Volume: 19, Number: 1, Pages: 696–708 Pages count : 13 DOI: 10.1515/chem-2021-0062

Tags

perovskite; fluorite; ethanol; reforming; hydrogen

Authors

Naurzkulova Symbat Muratbekovna ¹ , Arapova Marina Vasilievna ² , Ishchenko Arcady Vladimirovich ³ , Krieger Tamara Andreevna ³ , Saraev Andrei Aleksandrovich ³ , Kaichev Vasilii Vasilievich ³ , Rogov Vladimir Alekseevich ³ , Krasnov Aleksei Vyacheslavovich ² , Massalimova Bakytgul Kabykenovna ¹ , Sadykov Vladislav Aleksandrovich ^2,4

Affiliations

1	Department of Chemistry and Chemical Technology, M. Kh. Dulaty Taraz Regional University, Tole Bi Str., 60, 080000, Taraz, Kazakhstan
2	Department of Heterogeneous Catalysis, Federal Research Center, Boreskov Institute of Catalysis
3	Catalyst Research Department, Federal Research Center, Boreskov Institute of Catalysis
4	Novosibirsk State University

Funding (2)

1	Ministry of Science and Higher Education of the Russian Federation	0239-2021-0005
2	Taraz State University

Ethanol steam reforming catalyst’s precursors, i.e., nanocomposites of complex oxides with the general formula [Pr0.15Sm0.15Ce0.35Zr0.35O2 + LaMn0.45Ni0.45Ru0.1O3] (1:1 by mass), were synthesized by three different methods. It was shown that two synthesis methods – ultrasonic dispersion and sequential polymeric method, lead to the formation of the nanocomposite perovskite–fluorite system with the specific surface area up to 50 m2/g. Reduction of samples at 400–500°C lead to the formation of Ni–Ru alloy nanoparticles strongly bound with the surface of oxide nanocomposite. Catalytic tests in ethanol steam reforming reaction at 500–600°C showed the highest specific activity of the sample prepared by the sequential polymeric method due to the location of Ni- and Ru-containing perovskite mainly on the surface of the composite providing a high concentration of active metal centers. At higher temperatures for all samples, ethanol conversion approached 100% with hydrogen yield varying in the range of 65–75%. A study of spent catalysts confirmed the absence of carbon deposits after long-term catalytic tests at 650°C.

Naurzkulova S.M. , Arapova M.V. , Ishchenko A.V. , Krieger T.A. , Saraev A.A. , Kaichev V.V. , Rogov V.A. , Krasnov A.V. , Massalimova B.K. , Sadykov V.A.
Ni–Ru-Containing Mixed Oxide-Based Composites as Precursors for Ethanol Steam Reforming Catalysts: Effect of the Synthesis Methods on the Structural and Catalytic Properties

Open Chemistry. 2021. V.19. N1. P.696–708. DOI: 10.1515/chem-2021-0062 WOS Scopus РИНЦ AN OpenAlex

Full text from publisher

Submitted:	Dec 8, 2020
Published print:	Jan 1, 2021
Accepted:	May 1, 2021
Published online:	Jun 14, 2021

Web of science:	WOS:000682805900001
Scopus:	2-s2.0-85108699957
Elibrary:	46848493
Chemical Abstracts:	2021:2224109
OpenAlex:	W3171305456

DB	Citing
Scopus	12
Web of science	12
Elibrary	8
OpenAlex	11