Published date: Oct 12 2016

Journal Title: KnE Materials Science

Issue title: IV Sino-Russian ASRTU Symposium on Advanced Materials and Processing Technology (ASRTU)

Pages: 64-70

DOI: 10.18502/kms.v1i1.564

A.R. Gilevartem.gilev@urfu.ru

E.A. Kiselev

V.A. Cherepanov

The MIEC La_1.5Sr_0.5Ni_1-yFe_yO₄ (y=0.1-0.4) oxides have been studied as cathode materials with La_0.88Sr_0.12Ga_0.82Mg_0.18O_3-δ (LSGM) electrolyte. Total conductivity, thermal expansion, oxygen nonstoichiometry, and chemical compatibility with LSGM and Ce_0.8Sm_0.2O_1.9 (SDC) were determined. The following fuel cells were tested: La_1.5Sr_0.5Ni_1-yFe_yO₄ (y=0.1, 0.2, 0.3, 0.4)/SDC/LSGM/Sr₂N_0.75Mg_0.25MoO₆ (SNMM) and La_1.5Sr_0.5Ni_0.6Fe_0.4O₄/SDC/LSGM/SDC/NiO-SDC. For the former, the maximum power densities were 218, 274, 222, and 390 mW/cm² at 850 °C in case of y equal to 0.1, 0.2, 0.3, and 0.4, respectively. The latter cell showed maximum power density of 341 mW/cm² at 850°C.

[1] S. Yoo, S. Choi, J. Shin, M. Liu, and G. Kim, Electrical properties, thermodynamic behavior, and defect analysis of La n+1Ni nO 3n+1+δ infiltrated into YSZ scaffolds as cathodes for intermediate temperature SOFCs, RSC Advances, 2, no. 11, 4648–4655, (2012).


[2] A. Montenegro-Hernández, J. Vega-Castillo, L. Mogni, and A. Caneiro, Thermal stability of Ln2NiO4+δ (Ln: La, Pr, Nd) and their chemical compatibility with YSZ and CGO solid electrolytes, International Journal of Hydrogen Energy, 36, no. 24, 15704–15714, (2011).


[3] N. Solak, M. Zinkevich, and F. Aldinger, Compatibility of La2NiO4 cathodes with LaGaO3 electrolytes: A computational approach, Solid State Ionics, 177, no. 19-25, 2139–2142, (2006).


[4] A. Aguadero, M. J. Escudero, M. Pérez, J. A. Alonso, V. Pomjakushin, and L. Daza, Effect of Sr content on the crystal structure and electrical properties of the system La2-xSrxNiO4+δ (0 ≤ x ≤ 1), Dalton Transactions, no. 36, 4377–4383, (2006).


[5] L. V. Makhnach, V. V. Pankov, and P. Strobel, High-temperature oxygen non-stoichiometry, conductivity and structure in strontium-rich nickelates La2-xSrxNiO4-δ (x = 1 and 1.4), Materials Chemistry and Physics, 111, no. 1, 125–130, (2008).


[6] Y. Takeda, R. Kanno, M. Sakano, O. Yamamoto, M. Takano, Y. Bando, H. Akinaga, K. Takita, and J. B. Goodenough, Crystal chemistry and physical properties of La2-xSrxNiO4 (0 ≤ x ≤ 1.6), Materials Research Bulletin, 25, no. 3, 293–306, (1990).


[7] R. Benloucif, N. Nguyen, J. M. Greneche, and B. Raveau, La2-xSrxNi1-yFeyO4-[ (x-y) 2]+δ: Relationships between oxygen non-stoichiometry and magnetic and electron transport properties, Journal of Physics and Chemistry of Solids, 52, no. 2, 381–387, (1991).


[8] V. V. Kharton, A. V. Kovalevsky, M. Avdeev, E. V. Tsipis, M. V. Patrakeev, A. A. Yaremchenko, E. N. Naumovich, and J. R. Frade, Chemically induced expansion of La2NiO4+δ-based materials, Chemistry of Materials, 19, no. 8, 2027–2033, (2007).


[9] A. R. Gilev, E. A. Kiselev, and V. A. Cherepanov, Synthesis, oxygen nonstoichiometry and total conductivity of (La,Sr)2 (Mn,Ni)O4±