TY - JOUR
T1 - Conductivity and sintering property of LaNi1 - XFe xO3 ceramics prepared by Pechini method
AU - Niwa, Eiki
AU - Uematsu, Chie
AU - Miyashita, Erina
AU - Ohzeki, Takeshi
AU - Hashimoto, Takuya
N1 - Funding Information:
This study was financially supported from the “Strategic Research Base Development” Program for Private Universities subsidized by MEXT (2009) and from Nihon University Strategic Projects for Academic Research “Nanotechnology Excellence – Nanomaterial based Photonic and Quantum Technologies”.
PY - 2011/10/19
Y1 - 2011/10/19
N2 - Preparation of LaNi1 - xFexO3, which is one of the candidate materials of solid oxide fuel cell cathode, current collecting layer and interconnect coating was examined with Pechini method and solid state reaction method. Single phase LaNi1 - xFe xO3 with large Ni content has successfully been prepared by low temperature sintering as 750 °C with Pechini method, whereas large amount of raw materials has remained with solid state reaction method by sintering at the same temperature. It can be ascribed to more homogenous cation distribution in raw powder material prior to sintering with Pechini method. It has also been revealed that LaNi1 - xFexO3 with x lower than 0.3 is thermodynamically unstable in air above 1000 °C. LaNi0.6Fe0.4O3 showed superior property as cathode material with high electrical conductivity, thermodynamic stability and appropriate sintering property.
AB - Preparation of LaNi1 - xFexO3, which is one of the candidate materials of solid oxide fuel cell cathode, current collecting layer and interconnect coating was examined with Pechini method and solid state reaction method. Single phase LaNi1 - xFe xO3 with large Ni content has successfully been prepared by low temperature sintering as 750 °C with Pechini method, whereas large amount of raw materials has remained with solid state reaction method by sintering at the same temperature. It can be ascribed to more homogenous cation distribution in raw powder material prior to sintering with Pechini method. It has also been revealed that LaNi1 - xFexO3 with x lower than 0.3 is thermodynamically unstable in air above 1000 °C. LaNi0.6Fe0.4O3 showed superior property as cathode material with high electrical conductivity, thermodynamic stability and appropriate sintering property.
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U2 - 10.1016/j.ssi.2011.08.004
DO - 10.1016/j.ssi.2011.08.004
M3 - Article
AN - SCOPUS:80053984119
SN - 0167-2738
VL - 201
SP - 87
EP - 93
JO - Solid State Ionics
JF - Solid State Ionics
IS - 1
ER -