Design of Materials for Solid Oxide Fuel Cells Cathodes and Oxygen Separation Membranes Based on Fundamental Studies of Their Oxygen Mobility and Surface Reactivity | Sciact - CRIS-система Института катализа

Design of Materials for Solid Oxide Fuel Cells Cathodes and Oxygen Separation Membranes Based on Fundamental Studies of Their Oxygen Mobility and Surface Reactivity Научная публикация

Конференция

International Conference on Advances in Energy Systems and Environmental Engineering
09-12 июн. 2019 , Wroclaw

Журнал

E3S Web of Conferences
, E-ISSN: 2267-1242

Вых. Данные

Год: 2019, Том: 116, Номер статьи : 00068, Страниц : 9 DOI: 10.1051/e3sconf/201911600068

Ключевые слова

Cathodes; Cerium compounds; Cobalt compounds; Environmental engineering; Fluorspar; Membranes; Nanocomposites; Nickel compounds; Oxygen; Perovskite; Positive ions; Praseodymium compounds

Авторы

Sadykov Vladislav ^1,2 , Sadovskaya Ekaterina ^1,2 , Eremeev Nikita ¹ , Pikalova Elena ^3,4 , Bogdanovich Nina ³ , Filonova Elena ⁴ , Fedorova Yulia ¹ , Krasnov Alexey ¹ , Skriabin Pavel ¹ , Lukashevich Anton ¹

Организации

1	Boreskov Institute of Catalysis, SB RAS, Novosibirsk, 630090, Russian Federation
2	Novosibirsk State University, Novosibirsk, 630090, Russian Federation
3	Institute of High Temperature Electrochemistry, UB RAS, Yekaterinburg, 620137, Russian Federation
4	Ural Federal University, Yekaterinburg, 620002, Russian Federation

Информация о финансировании (2)

1	Российский научный фонд	16-13-00112
2	Министерство образования и науки Российской Федерации	02.A03.21.0006

Design of materials for solid oxide fuel cells cathodes and oxygen separation membranes and studying their oxygen transport characteristics are important problems of modern hydrogen energy. In the current work, fundamentals of such materials design based on characterization of their oxygen mobility by oxygen isotope exchange with C18O2 and 18O2 in flow and closed reactors for samples of Ruddlesden - Popper-type oxides Ln2-xCaxNiO4+δ, perovskite-fluorite nanocomposites PrNi0.5Co0.5O3-δ - Ce0.9Y0.1O2-δ, etc. are presented. Fast oxygen transport was demonstrated for PNC - YDC (DO ~10-8 cm2/s at 700°C) nanocomposites due to domination of the fast diffusion channel involving oxygen of the fluorite phase with incorporated Pr cations and developed perovskite-fluorite interfaces. For LnCNO materials a high oxygen mobility (DO ~10-7 cm2/s at 700°C) provided by the cooperative mechanism of its migration was demonstrated. Depending on Ca dopant content and Ln cation nature, in some cases 1-2 additional channels of the slow diffusion appear due to decreasing the interstitial oxygen content and increasing the energy barrier for oxygen jumps due to cationic size effect. Optimized by the chemical composition and nanodomain structure materials of these types demonstrated a high performance as SOFC cathodes and functional layers in asymmetric supported oxygen separation membranes. © The Authors, published by EDP Sciences, 2019.

Sadykov V. , Sadovskaya E. , Eremeev N. , Pikalova E. , Bogdanovich N. , Filonova E. , Fedorova Y. , Krasnov A. , Skriabin P. , Lukashevich A.
Design of Materials for Solid Oxide Fuel Cells Cathodes and Oxygen Separation Membranes Based on Fundamental Studies of Their Oxygen Mobility and Surface Reactivity

E3S Web of Conferences. 2019. V.116. 00068 :1-9. DOI: 10.1051/e3sconf/201911600068 Scopus РИНЦ CAPlus OpenAlex

Полный текст от издателя

Опубликована в печати:	24 сент. 2019 г.
Опубликована online:	24 сент. 2019 г.

Scopus:	2-s2.0-85072797521
РИНЦ:	41700291
Chemical Abstracts:	2020:505776
OpenAlex:	W2976799662

БД	Цитирований
Scopus	2
РИНЦ	1
OpenAlex	2