@article{SHENG2024, 
author = {Yang SHENG and Xiaoliang ZHOU and Limin LIU and Feifan HE and Yang TANG and Xingzhou JIANG},
title = {Preparation and Electrochemical Performance of Ni Doped Ba0.5Sr0.5(Co0.8Fe0.2)1-xNixO3-δ Cathodes for Proton Ceramic Fuel Cells},
year = {2024},
journal = {Journal of Ceramics},
volume = {45},
number = {3},
pages = {475-482},
keywords = {PCFCs, BSCF cathodes, transition metal, Ni doping},
url = {https://www.sciopen.com/article/10.13957/j.cnki.tcxb.2024.03.005},
doi = {10.13957/j.cnki.tcxb.2024.03.005},
abstract = {The electrochemical performance of conventional mixed ionic-electronic conducting oxides Ba0.5Sr0.5Co0.8Fe0.2O3-δ(BSCF) in proton ceramic fuel cells (PCFCs) has been improved by using nickel doping strategy. A series of Ba0.5Sr0.5(Co0.8Fe0.2)1-xNixO3-δ samples were synthesized by using sol-gel method. Chemical compatibility and stability between the Ba0.5Sr0.5(Co0.8Fe0.2)0.9Ni0.1O3-δ (BSCFN10) cathode and the electrolyte BaZr0.1Ce0.7Y0.2O3-δ (BZCY) were studied, which was used in the PCFCs. Catalytic activity of the electrodes was evaluated by constructing a symmetric cell. It is showed that the BSCFN10 cathode has superior catalytic activity than BSCF. Peak power density of the BSCFN10 cathode was enhanced from 380 mW·cm-2 to 503 mW·cm-2 and the polarization impedance was reduced from 0.21 Ω·cm2 to 0.12 Ω·cm2, as compared with the undoped BSCF within a hydrogen atmosphere containing 3% water vapor at 700 ℃. In addition, the BSCFN10 electrode exhibited excellent operating stability at a current density of 0.4 A·cm-2, showcasing its potential for application in PCFCs.}
}