Investigation of structural, electrical and electrochemical properties of La0.6Sr0.4Fe0.8Mn0.2O3-δ as an intermediate temperature solid oxide fuel cell cathode

Solid oxide electrolysis cells – current material development and industrial application

“…374 The maximum conductivity of La 0.6 Sr 0.4 Fe 0.8 Mn 0.2 O 3− δ observed in air at 800 °C was in the range of 35.24 S cm −1 (ref. 375) to 50.3 S cm −1 . 374 The performance of LSFM fuel electrodes in CO 2 electrolysis and co-electrolysis operation was analyzed in several publications.…”

“…The chemical compatibility of LSFM (La 0.6 Sr 0.4 Fe 0.8 Mn 0.2 O 3− δ ) and YSZ has been investigated for a heat-treated mixture of LSFM and YSZ (50 : 50 wt%) for one week in a temperature range of 600–950 °C. 375 No chemical reaction was detected for temperatures of 600–850 °C, whereas secondary phase formation in the form of SrZrO 3 was identified for temperatures of 900–950 °C. The authors concluded that LSFM and YSZ show good compatibility in an intermediate temperature range.…”

Recent advances in electrode material for symmetrical solid oxide fuel cells and way forward sustainability based on local mineral resources

“…Ceramic materials are the components usually used in making SOFC, having very specific electrical characteristics of conducting ionic and electronic charges through defects in the crystalline structure 3 . Electrical performance study helps in understanding the conductivity, resistivity, and area‐specific resistance, semi‐conductor behaviour, the activation energy of the material, and so on 85 while electrochemical studies of a single cell are critical for SOFCs performance because they directly affect cell power generation performance, temperature management, and so on. The three activation, ohmic, and concentration polarisations within the electrolyte and electrodes have a significant influence on these properties 86 …”

Development of CO2 tolerant cathode materials for low-temperature solid oxide fuel cells

“…For the Sr +2 substituted LSM perovskite, charge imbalance in the structure neutralized by Mn 3+/4+ heterovalent cations, which provides the higher availability of hopping sites. However, charge disproportionation arises in the LSM perovskite oxide due to the partial incorporation of Fe 3+ transition metal -limiting the electronic conduction [84][85] In the ABO3 perovskite oxide, the BO6 octahedral structure is considered the most stable because of whereas valence state of TMs is changed along with BO6 octahedral network. [87][88] .…”