Hybrid Solid Electrolyte Composites Based on NaNO2 and Aerogel-Prepared Mg-Al Oxides | Sciact - CRIS-система Института катализа

Hybrid Solid Electrolyte Composites Based on NaNO2 and Aerogel-Prepared Mg-Al Oxides Научная публикация

Журнал

Inorganic Chemistry Communications
ISSN: 1387-7003

Вых. Данные

Год: 2025, Том: 176, Номер статьи : 114324, Страниц : 10 DOI: 10.1016/j.inoche.2025.114324

Ключевые слова

Composite solid electrolytes; ionic conductivity; sodium nitrite; alumina; magnesium oxide; aerogels

Авторы

Shivtsov Danil M. ¹ , Mateyshina Yuliya G. ² , Ilyina Ekaterina V. ¹ , Pochtar Alena A. ¹ , Uvarov Nikolai F. ² , Vedyagin Aleksey A. ¹

Организации

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

Информация о финансировании (2)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUS-2021-0007 (121032500065-5)
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	FWUR-2024-0034

Highly dispersed oxides MgO, Al2O3, and MgO-Al2O3 were synthesized via an aerogel approach and used as a heterogeneous dopant for the preparation of solid electrolyte composites based on sodium nitrite. The oxides possess a developed surface area of 300–400 m2/g. The effects of the oxide content in the composition of prepared composite materials on their textural properties and phase composition were studied using X-ray diffraction analysis and low-temperature nitrogen adsorption. A mechanism for filling pores of an ionic salt during the formation of a composite was proposed. The introduction of 30–80 mol% of highly dispersed aerogel oxides was found to increase the ionic conductivity of the composites by 3 orders of magnitude. Thus, the ionic conductivity values for pure NaNO2 and the composite solid electrolytes at 200 °C were 1.8 × 10−6 and ∼6 × 10−3 S/cm, respectively. The highest ionic conductivity value of 6.45 × 10−3 S/cm was obtained for the composite sample containing 80 mol% of MgO.

Shivtsov D.M. , Mateyshina Y.G. , Ilyina E.V. , Pochtar A.A. , Uvarov N.F. , Vedyagin A.A.
Hybrid Solid Electrolyte Composites Based on NaNO2 and Aerogel-Prepared Mg-Al Oxides
Inorganic Chemistry Communications. 2025. V.176. 114324 :1-10. DOI: 10.1016/j.inoche.2025.114324 Scopus

Поступила в редакцию:	3 февр. 2025 г.
Принята к публикации:	11 мар. 2025 г.
Опубликована online:	13 мар. 2025 г.
Опубликована в печати:	2 июн. 2025 г.

Scopus:

2-s2.0-86000752770

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