TY  - JOUR
AU  - Juckel, Martin
AU  - Grimm, Fabian
AU  - Zischke, S.
AU  - Sohn, Yoo Jung
AU  - Guillon, Olivier
AU  - Menzler, Norbert H.
TI  - Novel air-electrode materials for low-cost inert-supported solid oxide cells: investigation of materials compatibility during co-sintering
JO  - Journal of materials science
VL  - 58
IS  - 34
SN  - 0022-2461
CY  - Dordrecht [u.a.]
PB  - Springer Science + Business Media B.V
M1  - FZJ-2023-03472
SP  - 13705 - 13720
PY  - 2023
AB  - For the investigation of the reactivity of alternative solid oxide cell air electrode materials with forsterite (Mg2SiO4), a magnesium silicate doped with Zn and Ca, five different phase materials were chosen: two Ruddlesden–Popper phase materials: La4Ni3O10 (L4N3) and La3Ni2O7 (L3N2) and three titanium-based perovskite materials: SrTiO3 (STO), SrTi0.75Fe0.25O3 (STF25) and CaTi0.9Fe0.1O3 (CTF). Forsterite was chosen as a support material for the fuel cell, as it is abundant and therefore relatively inexpensive. For the investigation of their reactivity, different types of samples were prepared: mixed pellets, double-layered pellets and screen-printed electrode inks on forsterite green substrates, which were subsequently co-sintered at T = 1300 °C. These samples and their cross sections were then studied using XRD, SEM, EDS and TEM lamella point analysis. Consequently, the impedance spectra were acquired to determine their electro-catalytic performance. The two Ruddlesden–Popper phase materials L4N3 and L3N2 are of high interest due to their thermodynamic stability and high electro-catalytic activity, resulting in a very low polarization resistance. However, this polarization resistance is increased when mixing with forsterite material. In case of the three titanium-based perovskites, the electro-catalytic activity is of less interest due to high polarization resistances.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:001058929700001
DO  - DOI:10.1007/s10853-023-08862-0
UR  - https://juser.fz-juelich.de/record/1014797
ER  -