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Synthesis and Enhanced Electrochemical Performance of Sm‐Doped Sr 2 Fe 1.5 Mo 0.5 O 6
Author(s) -
Wang Y.,
Li P.,
Li H.,
Zhao Y.,
Li Y.
Publication year - 2014
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201300250
Subject(s) - materials science , anode , doping , electrochemistry , analytical chemistry (journal) , cathode , electrical resistivity and conductivity , conductivity , oxide , solid oxide fuel cell , ionic conductivity , chemistry , electrode , metallurgy , electrolyte , optoelectronics , engineering , chromatography , electrical engineering
Sr 2 Fe 1.5 Mo 0.5 O 6 (SFM) is a mixed ionic and electronic conductor which can be used as both anode and cathode materials in intermediate‐temperature solid oxide fuel cell. By doping Sm into the Sr‐site, the electrical conductivity of SFM is enhanced effectively. The single cell with a configuration of Sr 1.8 Sm 0.2 Fe 1.5 Mo 0.5 O 6 |La 0.8 Sr 0.2 Ga 0.83 Mg 0.17 O 2.815 | Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3 obtained maximum power densities of 459, 594, and 742 mW cm −2 with H 2 as the fuel at 750, 800, and 850 °C, respectively. The results suggest that doping with Sm is a very promising way in enhancing the electrical conductivity of SFM and consequently can greatly improve its anode performance.