Premium
Characterization of SrFe 0 . 9‐ x Cu x Mo 0 . 1 O 3 ‐ δ ( x = 0, 0.1 and 0.2) as cathode for intermediate‐temperature solid oxide fuel cells
Author(s) -
Yao Chuangang,
Yang Jixing,
Zhang Haixia,
Chen Sigeng,
Meng Jian,
Cai Kedi
Publication year - 2020
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6156
Subject(s) - doping , electrolyte , analytical chemistry (journal) , materials science , electrochemistry , cathode , tec , mineralogy , chemistry , electrode , optoelectronics , physics , chromatography , ionosphere , astronomy
Summary Cu doped perovskites SrFe 0.9‐ x Cu x Mo 0.1 O 3‐ δ (SFCM, x = 0‐0.2) are explored as cathodes for IT‐SOFCs. The influence of Cu doping on the property of SFCM series was studied in detail. The oxygen content decreases with the increase of Cu doping amount. SFCM samples are chemically compatible with LSGM electrolyte. However, the TEC values are still a bit higher than that of some common SOFC electrolytes. At 750°C, the R p values are 0.261, 0.227 and 0.155 Ω·cm 2 for SFCM0, SFCM0.1, and SFCM0.2. The obtained activation energies for x = 0, 0.1, and 0.2 are 1.01, 0.98, and 0.87 eV, respectively. These results indicate that Cu doping into SrFe 0.9‐ x Cu x Mo 0.1 O 3‐ δ has a favorable effect on the electrochemical activity of the materials.