Exploring MnCr2O4–Gd0.1Ce0.9O2-δ as a composite electrode material for solid oxide fuel cell

2019 ◽  
Vol 44 (59) ◽  
pp. 31333-31341 ◽  
Author(s):  
Peiyao Li ◽  
Nanqi Duan ◽  
Jiyang Ma ◽  
Lichao Jia ◽  
Bo Chi ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Electrode Material ◽  
Composite Electrode ◽  
Solid Oxide ◽  
Oxide Fuel

Electrochemical investigation of mixed metal oxide nanocomposite electrode for low temperature solid oxide fuel cell

2017 ◽  
Vol 31 (27) ◽  
pp. 1750193 ◽  
Author(s):  
Ghazanfar Abbas ◽  
Rizwan Raza ◽  
M. Ashfaq Ahmad ◽  
M. Ajmal Khan ◽  
M. Jafar Hussain ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Metal Oxide ◽  
Solid Oxide Fuel Cell ◽  
Electrode Material ◽  
Solid Oxide ◽  
Mixed Metal Oxide ◽  
Oxide Fuel ◽  
Air Atmosphere ◽  
Dry Pressing

Zinc-based nanostructured nickel (Ni) free metal oxide electrode material Zn[Formula: see text]/Cu[Formula: see text]Mn[Formula: see text] oxide (CMZO) was synthesized by solid state reaction and investigated for low temperature solid oxide fuel cell (LTSOFC) applications. The crystal structure and surface morphology of the synthesized electrode material were examined by XRD and SEM techniques respectively. The particle size of ZnO phase estimated by Scherer’s equation was 31.50 nm. The maximum electrical conductivity was found to be 12.567 S/cm and 5.846 S/cm in hydrogen and air atmosphere, respectively at 600[Formula: see text]C. The activation energy of the CMZO material was also calculated from the DC conductivity data using Arrhenius plots and it was found to be 0.060 and 0.075 eV in hydrogen and air atmosphere, respectively. The CMZO electrode-based fuel cell was tested using carbonated samarium doped ceria composite (NSDC) electrolyte. The three layers 13 mm in diameter and 1 mm thickness of the symmetric fuel cell were fabricated by dry pressing. The maximum power density of 728.86 mW/cm2 was measured at 550[Formula: see text]C.

Equivalent Circuit Model for the Electrochemical Reaction Process within the Solid Oxide Fuel Cell Composite Electrode

2013 ◽  
Vol 662 ◽  
pp. 266-272 ◽  
Author(s):  
Dai Fen Chen ◽  
Qi Ce Zeng ◽  
Huan Huan He ◽  
Liang Wei ◽  
Zi Dong Yu
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Electric Current ◽  
Equivalent Circuit ◽  
Transfer Process ◽  
Composite Electrode ◽  
Electrochemical Reaction ◽  
Solid Oxide ◽  
Current Transfer ◽  
Oxide Fuel

As the fabrication technology of the composite electrode becomes sophisticated, the understanding of the detailed knowledge of the microstructure’s effect on the electrochemical process is essential for the commercializing of the solid oxide fuel cell (SOFC). In this paper, an equivalent circuit for the SOFC structure is proposed to clearly describe the electronic electric current transfer process, ionic electric current transfer process and the charge transfer process at the electrochemical reaction interface between electronic and ionic conducting materials. And types of the boundary condition setting constraints for the developing of the multi-physics coupling numerical model of SOFC are obtained basing on the electrochemical kinetic analysis.

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