Hybrid Nanocomposite Solid Electrolytes (n-C4H9)4NBF4–MgO | Sciact - CRIS-system of Boreskov Institute of Catalysis

Hybrid Nanocomposite Solid Electrolytes (n-C4H9)4NBF4–MgO Full article

Journal

International Journal of Molecular Sciences
ISSN: 1422-0067 , E-ISSN: 1661-6596

Output data

Year: 2023, Volume: 24, Number: 13, Article number : 10949, Pages count : 13 DOI: 10.3390/ijms241310949

Tags

tetrabutylammonium tetrafluoroborate; magnesium oxide; hybrid nanocomposites; amorphous interface-stabilized phase; amorphous layer thickness; ionic conductivity

Authors

Mateyshina Yulia ^1,2 , Stebnitskii Ivan ^1,2 , Shivtsov Danil ³ , Ilyina Ekaterina ³ , Ulihin Artem ¹ , Bukhtiyarov Andrey ³ , Uvarov Nikolai ^1,2

Affiliations

1	Institute of Solid State Chemistry and Mechanochemistry SB RAS, Kutateladze St. 18, Novosibirsk 630090, Russia
2	Department of Natural Sciences, Novosibirsk State University, Pirogova St.1, Novosibirsk 630090, Russia
3	Boreskov Institute of Catalysis SB RAS, Lavrentiev Ave. 5, Novosibirsk 630090, Russia

Funding (1)

Russian Science Foundation

20-13-00302

Hybrid nanocomposite materials Bu4NBF4–MgO were obtained using a nanocrystalline MgO with a specific surface area of 324 m2/g and the grains size of 5.1 nm. As a result of the strong adhesion, the salt transforms into an interface-stabilized amorphous state within the thin layer near the interface. The analysis of the DSC data allowed one to estimate the concentration and the thickness of this amorphous layer as 4.8 nm. The amorphous interface phase has an enhanced ionic conductivity. As a result, conductivity of the nanocomposite increases with the concentration of the amorphous phase and reaches 1.1 × 10−3 S/cm at 150 °C at a concentration of the MgO additive x = 0.90 corresponding to the maximum content of the amorphous phase. The conductivity of the nanocomposite is by three orders of magnitude higher than the conductivity of pure Bu4NBF4. The nanocomposites are electrochemically stable up to 2.5 V. At high concentrations of MgO when the total volume of the salt is small the composites become nano- and mesoporous.

Mateyshina Y. , Stebnitskii I. , Shivtsov D. , Ilyina E. , Ulihin A. , Bukhtiyarov A. , Uvarov N.
Hybrid Nanocomposite Solid Electrolytes (n-C4H9)4NBF4–MgO
International Journal of Molecular Sciences. 2023. V.24. N13. 10949 :1-13. DOI: 10.3390/ijms241310949 WOS Scopus РИНЦ AN PMID OpenAlex

Submitted:	May 24, 2023
Accepted:	Jun 28, 2023
Published online:	Jun 30, 2023
Published print:	Jul 1, 2023

Web of science:	WOS:001028443700001
Scopus:	2-s2.0-85164845584
Elibrary:	54096275
Chemical Abstracts:	2023:1515251
PMID:	37446124
OpenAlex:	W4382753145

DB	Citing
Elibrary	6
OpenAlex	6
Scopus	6
Web of science	4