TY - JOUR
T1 - Impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2 infiltrated (La,Sr)MnO 3 cathodes of solid oxide fuel cells
AU - Chen, Kongfa
AU - Ai, Na
AU - Lievens, Caroline
AU - Love, Jonathan
AU - Jiang, San Ping
PY - 2012/9/1
Y1 - 2012/9/1
N2 - The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.
AB - The impact of volatile boron species on the microstructure and performance of nano-structured (Gd,Ce)O 2-infiltrated (La,Sr)MnO 3 (GDC-LSM) cathodes of solid oxide fuel cells is studied for the first time. The results indicate that after the heat treatment of the cathodes at 800 °C in air for 30 days in the presence of borosilicate glass significant grain growth and agglomeration of infiltrated GDC nanoparticles are observed. The electrode polarization resistance of the GDC-LSM cathode after the heat treatment in the presence of glass is 3.15 Ω cm 2 at 800 °C, substantially higher than 0.17 Ω cm 2 of the cathode heat-treated in the absence of glass under identical conditions. ICP-OES analysis shows the deposition of boron species in the cathodes after sintering in the presence of glass powder. The results demonstrate the significant detrimental effect of volatile boron species on the microstructure and activity of nano-structured GDC-LSM cathode.
KW - Boron
KW - Glass sealant
KW - Infiltrated LSM-GDC cathode
KW - Nano-structure
KW - Solid oxide fuel cells
KW - ITC-ISI-JOURNAL-ARTICLE
UR - https://ezproxy2.utwente.nl/login?url=https://doi.org/10.1016/j.elecom.2012.07.025
UR - https://ezproxy2.utwente.nl/login?url=https://library.itc.utwente.nl/login/2012/isi/lievens_imp.pdf
U2 - 10.1016/j.elecom.2012.07.025
DO - 10.1016/j.elecom.2012.07.025
M3 - Article
AN - SCOPUS:84865604369
VL - 23
SP - 129
EP - 132
JO - Electrochemistry communications
JF - Electrochemistry communications
SN - 1388-2481
IS - 1
ER -