Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Oxygen exchange in MIEC layered perovskite-like oxide Nd2NiO4+δ: Kinetics and equilibrium parameters. / Fouad, Mario; Guskov, Rostislav; Kovalev, Ivan и др.
в: Ceramics International, Том 50, № 21 Part C, 01.11.2024, стр. 43522-43529.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Oxygen exchange in MIEC layered perovskite-like oxide Nd2NiO4+δ: Kinetics and equilibrium parameters
AU - Fouad, Mario
AU - Guskov, Rostislav
AU - Kovalev, Ivan
AU - Tropin, Evgeniy
AU - Gongola, Marko
AU - Popov, Mikhail
AU - Nemudry, Alexander
N1 - This work was supported by the state assignment to ISSCM SB RAS, project No. 121032500059-4.
PY - 2024/11/1
Y1 - 2024/11/1
N2 - Layered Ruddlesden-Popper (RP) neodymium nickelate oxide, Nd2NiO4+δ, is considered a potential cathode material in solid oxide fuel cells. In this study, the equilibrium properties of NNO were investigated by using quasi-equilibrium oxygen release to contract the isothermal equilibrium diagram “lg pO2 – (4+δ) – T”. Furthermore, the kinetic properties of NNO were studied by oxygen partial pressure relaxation to determine the equilibrium oxygen exchange rate (R0), chemical diffusion coefficient in oxide (Dchem), and surface exchange rate constant (kchem). The Brønsted-Evans-Polanyi-type linear free energy relationship was shown to exist between the standard Gibbs energy of the reaction and the activation energy of the reaction rate constant.
AB - Layered Ruddlesden-Popper (RP) neodymium nickelate oxide, Nd2NiO4+δ, is considered a potential cathode material in solid oxide fuel cells. In this study, the equilibrium properties of NNO were investigated by using quasi-equilibrium oxygen release to contract the isothermal equilibrium diagram “lg pO2 – (4+δ) – T”. Furthermore, the kinetic properties of NNO were studied by oxygen partial pressure relaxation to determine the equilibrium oxygen exchange rate (R0), chemical diffusion coefficient in oxide (Dchem), and surface exchange rate constant (kchem). The Brønsted-Evans-Polanyi-type linear free energy relationship was shown to exist between the standard Gibbs energy of the reaction and the activation energy of the reaction rate constant.
KW - Layered perovskites
KW - Neodymium nickelate oxide
KW - Oxygen partial pressure relaxation
KW - Quasi equilibrium oxygen release
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85201301139&origin=inward&txGid=188cf3986479d203ad70d54bfcb57968
UR - https://elibrary.ru/item.asp?id=71904112
UR - https://www.mendeley.com/catalogue/fb916d54-d630-3be1-b490-6df62443ff64/
U2 - 10.1016/j.ceramint.2024.08.203
DO - 10.1016/j.ceramint.2024.08.203
M3 - Article
VL - 50
SP - 43522
EP - 43529
JO - Ceramics International
JF - Ceramics International
SN - 0272-8842
IS - 21 Part C
ER -
ID: 60780336