Correlation Between Structural and Transport Properties of Ca-Doped La Nickelates and Their Electrochemical Performance | Sciact - CRIS-система Института катализа

Correlation Between Structural and Transport Properties of Ca-Doped La Nickelates and Their Electrochemical Performance Научная публикация

Журнал

Crystals
, E-ISSN: 2073-4352

Вых. Данные

Год: 2021, Том: 11, Номер: 3, Номер статьи : 297, Страниц : 21 DOI: 10.3390/cryst11030297

Ключевые слова

La2NiO4+δ; Ca doping; isotope exchange; synchrotron radiation studies; oxygen mobility; polarization resistance

Авторы

Pikalova Elena ^1,2 , Sadykov Vladislav ^3,4 , Sadovskaya Ekaterina ³ , Yeremeev Nikita ³ , Kolchugin Alexander ¹ , Shmakov Alexander ^3,5,6 , Vinokurov Zakhar ^3,5,6 , Mishchenko Denis ^3,4 , Filonova Elena ⁷ , Belyaev Vladimir ³

Организации

1	Institute of High Temperature Electrochemistry UB RAS, 620066 Yekaterinburg, Russia
2	Department of Environmental Economics, Graduate School of Economics and Management, Ural Federal University Named after the First President of Russia B.N. Yeltsin, 620002 Ekaterinburg, Russia
3	Federal Research Center Boreskov Institute of Catalysis, 630090 Novosibirsk, Russia
4	Department of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
5	Budker Institute of Nuclear Physics SB RAS, 630090 Novosibirsk, Russia
6	Department of Physics, Novosibirsk State University, 630090 Novosibirsk, Russia
7	Department of Physical and Inorganic Chemistry, Institute of Natural Sciences and Mathematics, Ural Federal University Named after the First President of Russia B.N. Yeltsin, 620002 Ekaterinburg, Russia

Информация о финансировании (4)

1	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	0239-2021-0005
2	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	0239-2021-0011
3	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)	05.621.21.0022 (RFMEFI62119X0022) (АААА-А20-120072290017-9)
4	Министерство науки и высшего образования Российской Федерации (с 15 мая 2018)

This work presents the results from a study of the structure and transport properties of Ca-doped La2NiO4+δ. La2−xCaxNiO4+δ (x = 0–0.4) materials that were synthesized via combustion of organic-nitrate precursors and characterized by X-ray diffraction (XRD), in situ XRD using synchrotron radiation, thermogravimetric analysis (TGA) and isotope exchange of oxygen with C18O2. The structure was defined as orthorhombic (Fmmm) for x = 0 and tetragonal (I4/mmm) for x = 0.1–0.4. Changes that occurred in the unit cell parameters and volume as the temperature changed during heating were shown to be caused by the excess oxygen loss. Typical for Ruddlesden–Popper phases, oxygen mobility and surface reactivity decreased as the Ca content was increased due to a reduction in the over-stoichiometric oxygen content with the exception of x = 0.1. This composition demonstrated its superior oxygen transport properties compared to La2NiO4+δ due to the enhanced oxygen mobility caused by structural features. Electrochemical data obtained showed relatively low polarization resistance for the electrodes with a low Ca content, which correlates well with oxygen transport properties.

Pikalova E. , Sadykov V. , Sadovskaya E. , Yeremeev N. , Kolchugin A. , Shmakov A. , Vinokurov Z. , Mishchenko D. , Filonova E. , Belyaev V.
Correlation Between Structural and Transport Properties of Ca-Doped La Nickelates and Their Electrochemical Performance

Crystals. 2021. V.11. N3. 297 :1-21. DOI: 10.3390/cryst11030297 WOS Scopus РИНЦ CAPlusCA OpenAlex

Полный текст от издателя

Поступила в редакцию:	27 февр. 2021 г.
Принята к публикации:	15 мар. 2021 г.
Опубликована в печати:	17 мар. 2021 г.
Опубликована online:	17 мар. 2021 г.

Web of science:	WOS:000633585400001
Scopus:	2-s2.0-85103574232
РИНЦ:	46761730
Chemical Abstracts:	2021:805636
Chemical Abstracts (print):	174:884296
OpenAlex:	W3136459943

БД	Цитирований
Scopus	12
Web of science	11
РИНЦ	14
OpenAlex	14