TY - JOUR

T1 - Novel materials for solid oxide fuel cells cathodes and oxygen separation membranes

T2 - Fundamentals of oxygen transport and performance

AU - Sadykov, Vladislav A.

AU - Sadovskaya, Ekaterina M.

AU - Eremeev, Nikita F.

AU - Yu. Pikalova, Elena

AU - Bogdanovich, Nina M.

AU - Filonova, Elena A.

AU - Krieger, Tamara A.

AU - Fedorova, Yulia E.

AU - Krasnov, Alexey V.

AU - Skriabin, Pavel I.

AU - Lukashevich, Anton I.

AU - Steinberger-Wilckens, Robert

AU - Vinke, Izaak C.

N1 - Funding Information: Support of different parts of the work by the Russian Science Foundation (Project 16-13-00112) and the budget project #AAAA-A17-117041110045-9 for Boreskov Institute of Catalysis is gratefully acknowledged. The authors from the Ural Federal University are grateful to the Government of the Russian Federation (Agreement 02.A03.21.0006, Act 211). Ce0.9Y0.1O2??|Ce0.9Gd0.1O2??|Ni/Zr0.84Y0.16O2?? anodic half-cells and Ni/Al foam substrates were kindly provided by H.C. Starck, Germany and Powder Metallurgy Institute NAN Belarus, respectively. Authors would like to appreciate International Conference on Advances in Energy Systems and Environmental Engineering (ASEE19, Wroclaw, Poland, June 9-12, 2019) Organization Committee. Funding Information: Support of different parts of the work by the Russian Science Foundation (Project 16-13-00112) and the budget project #AAAA-A17-117041110045-9 for Boreskov Institute of Catalysis is gratefully acknowledged. The authors from the Ural Federal University are grateful to the Government of the Russian Federation (Agreement 02.A03.21.0006, Act 211). Ce 0.9 Y 0.1 O 2–δ |Ce 0.9 Gd 0.1 O 2–δ |Ni/Zr 0.84 Y 0.16 O 2–δ anodic half-cells and Ni/Al foam substrates were kindly provided by H.C. Starck, Germany and Powder Metallurgy Institute NAN Belarus, respectively. Authors would like to appreciate International Conference on Advances in Energy Systems and Environmental Engineering (ASEE19, Wroclaw, Poland, June 9-12, 2019) Organization Committee. Publisher Copyright: © 2020 Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2020/1

Y1 - 2020/1

N2 - In the field of modern hydrogen energy, obtaining pure hydrogen and syngas and then being able to use them for green energy production are significant problems. Developing solid oxide fuel cells (SOFC) and catalytic membranes for oxygen separation as well as materials for these devices is one of the most likely ways to solve these problems. In this work, the authors’ recent studies in this field are reviewed; the fundamentals of developing materials for SOFC cathodes and oxygen separation membranes’ permselective layers based on research of their oxygen mobility and surface reactivity are presented. Ruddlesden – Popper phases Ln2–xCaxNiO4+δ (LnCNO) and perovskite-fluorite nanocomposites PrNi0.5Co0.5O3–δ–Ce0.9Y0.1O2–δ (PNC–YDC) were studied by isotope exchange of oxygen with C18O2 and 18O2 in flow and closed reactors. For LnCNO a high oxygen mobility was shown (D* ~ 10–7 cm2/s at 700 °C), being provided by the cooperative mechanism of oxygen migration involving both regular and highly-mobile interstitial oxygen. For PNC–YDC dominated a wide fast diffusion channel via fluorite phase and interphases due to features of the redistribution of cations resulting in superior oxygen mobility (D* ~ 10–8 cm2/s at 700 °C). After optimization of composition and nanodomain structure of these materials, as cathodes of SOFC they provided a high power density, while for asymmetric supported oxygen separation membranes – a high oxygen permeability.

AB - In the field of modern hydrogen energy, obtaining pure hydrogen and syngas and then being able to use them for green energy production are significant problems. Developing solid oxide fuel cells (SOFC) and catalytic membranes for oxygen separation as well as materials for these devices is one of the most likely ways to solve these problems. In this work, the authors’ recent studies in this field are reviewed; the fundamentals of developing materials for SOFC cathodes and oxygen separation membranes’ permselective layers based on research of their oxygen mobility and surface reactivity are presented. Ruddlesden – Popper phases Ln2–xCaxNiO4+δ (LnCNO) and perovskite-fluorite nanocomposites PrNi0.5Co0.5O3–δ–Ce0.9Y0.1O2–δ (PNC–YDC) were studied by isotope exchange of oxygen with C18O2 and 18O2 in flow and closed reactors. For LnCNO a high oxygen mobility was shown (D* ~ 10–7 cm2/s at 700 °C), being provided by the cooperative mechanism of oxygen migration involving both regular and highly-mobile interstitial oxygen. For PNC–YDC dominated a wide fast diffusion channel via fluorite phase and interphases due to features of the redistribution of cations resulting in superior oxygen mobility (D* ~ 10–8 cm2/s at 700 °C). After optimization of composition and nanodomain structure of these materials, as cathodes of SOFC they provided a high power density, while for asymmetric supported oxygen separation membranes – a high oxygen permeability.

KW - Nanocomposites

KW - Oxygen mobility

KW - Oxygen separation membranes

KW - Perovskites

KW - Ruddlesden – Popper phases

KW - Solid oxide fuel cells

UR - http://www.scopus.com/inward/record.url?scp=85101369075&partnerID=8YFLogxK

U2 - 10.1016/j.crcon.2020.08.002

DO - 10.1016/j.crcon.2020.08.002

M3 - Article

AN - SCOPUS:85101369075

VL - 3

SP - 112

EP - 121

JO - Carbon Resources Conversion

JF - Carbon Resources Conversion

SN - 2588-9133

ER -