Simple Approach to the Fabrication of Lanthanum Orthoniobates and Nanocomposites with Ni, Cu, and Co Metal Nanoparticles Using Supercritical Isopropanol | Sciact - CRIS-system of Boreskov Institute of Catalysis

Simple Approach to the Fabrication of Lanthanum Orthoniobates and Nanocomposites with Ni, Cu, and Co Metal Nanoparticles Using Supercritical Isopropanol Full article

Journal

Journal of Composites Science
, E-ISSN: 2504-477X

Output data

Year: 2022, Volume: 6, Number: 9, Article number : 243, Pages count : 14 DOI: 10.3390/jcs6090243

Tags

orthoniobate; nanocomposite; supercritical fluids; membrane; conductivity

Authors

Altynbekova Dinara ¹ , Bespalko Yuliya ² , Valeev Konstantin ² , Eremeev Nikita ² , Sadovskaya Ekaterina ² , Krieger Tamara ² , Ulihin Artem ³ , Uhina Arina ³ , Massalimova Bakytgul ¹ , Simonov Mikhail ² , Sadykov Vladislav ²

Affiliations

1	Chemistry and Chemical Technology Department, Taraz Regional University Named after M. Kh. Dulaty, Suleimanova 6, 080000 Taraz, Kazakhstan
2	Heterogeneous Catalysis Department, Federal Research Center Boreskov Institute of Catalysis SB RAS, Akad. Laverntieva Ave. 5, 630090 Novosibirsk, Russia
3	Laboratory of Solid State Ionic, Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze Str. 18, 630128 Novosibirsk, Russia

Funding (1)

Ministry of Science and Higher Education of the Russian Federation

0239-2021-0010

Orthoniobates of rare-earth elements are a promising group of materials attractive for the design of nanocomposite hydrogen separation membranes owing to a perspective type of proton conductivity, good mechanical properties, and high stability in H2O- and CO2-containing atmospheres. In general, the promising method involves the synthesis of nanocomposites with transition metals (Cu, Ni, and Cu-Ni alloys) and their oxides with high electronic conductivity. For the first time, lanthanum orthoniobates and nanocomposites with NiCu and NiCo nanoparticles were synthesized using alcohol solutions of salts of the corresponding metals by the solvothermal method in a flow reactor in a supercritical isopropanol medium. This method made it possible to obtain single-phase La0.99Ca0.01NbO4–δ oxide. The introduction of doping titanium cations did not allow obtaining a single-phase La0.99Ca0.01Nb0.98Ti0.02O4–δ sample, as impurities in lanthanum methaniobate and La2Ti2O7 were found. Calcined powders and gastight pellets of orthoniobates and nanocomposites were characterized by X-ray diffraction analysis as well as scanning and transmission electron microscopy. Transport characteristics were investigated by the Van der Pauw technique, varying measurement temperatures in a wet H2 atmosphere. The oxygen mobility was estimated by the oxygen isotope heteroexchange with C18O2.

Altynbekova D. , Bespalko Y. , Valeev K. , Eremeev N. , Sadovskaya E. , Krieger T. , Ulihin A. , Uhina A. , Massalimova B. , Simonov M. , Sadykov V.
Simple Approach to the Fabrication of Lanthanum Orthoniobates and Nanocomposites with Ni, Cu, and Co Metal Nanoparticles Using Supercritical Isopropanol
Journal of Composites Science. 2022. V.6. N9. 243 :1-14. DOI: 10.3390/jcs6090243 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Jul 31, 2022
Accepted:	Aug 18, 2022
Published online:	Aug 23, 2022
Published print:	Sep 1, 2022

Web of science:	WOS:000857512600001
Scopus:	2-s2.0-85138717875
Elibrary:	50518672
Chemical Abstracts:	2022:2535098
OpenAlex:	W4293214259

DB	Citing
Scopus	2
Elibrary	2
OpenAlex	2
Web of science	2