High-performance solid oxide electrolysis cell based on ScSZ/GDC (scandia-stabilized zirconia/gadolinium-doped ceria) bi-layered electrolyte and LSCF (lanthanum strontium cobalt ferrite) oxygen electrode

Energy ◽  
2015 ◽  
Vol 90 ◽  
pp. 344-350 ◽  
Author(s):  
Asif Mahmood ◽  
Saira Bano ◽  
Ji Haeng Yu ◽  
Kew-Ho Lee
Keyword(s):  
High Performance ◽  
Cobalt Ferrite ◽  
Oxygen Electrode ◽  
Solid Oxide ◽  
Electrolysis Cell ◽  
Doped Ceria ◽  
Stabilized Zirconia ◽  
Lanthanum Strontium ◽  
Solid Oxide Electrolysis Cell ◽  
Gadolinium Doped Ceria

High-performance electrodes for reversible solid oxide fuel cell/solid oxide electrolysis cell: Ni–Co dispersed ceria hydrogen electrodes

RSC Advances ◽  
2014 ◽  
Vol 4 (31) ◽  
pp. 16260 ◽  
Author(s):  
Ryuta Nishida ◽  
Pramote Puengjinda ◽  
Hanako Nishino ◽  
Katsuyoshi Kakinuma ◽  
Manuel E. Brito ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Solid Oxide ◽  
Electrolysis Cell ◽  
Oxide Fuel ◽  
Solid Oxide Electrolysis ◽  
Solid Oxide Electrolysis Cell

Effect of Precursor Grain Size on the Sinterability and Conductivity of Commercial Yttria-Stabilized Zirconia as Solid Electrolyte

2018 ◽  
Vol 775 ◽  
pp. 331-335
Author(s):  
Anna Romina T. Mercado ◽  
Emmalin S. Mesina ◽  
Jennet R. Rabo ◽  
Rinlee Butch M. Cervera
Keyword(s):  
Grain Size ◽  
Chemical Properties ◽  
Fluorite Structure ◽  
Solid Oxide ◽  
Yttria Stabilized Zirconia ◽  
Electrolysis Cell ◽  
Total Conductivity ◽  
Stabilized Zirconia ◽  
Sem Images ◽  
Solid Oxide Electrolysis Cell

Solid oxide electrolysis cell (SOEC) and solid oxide fuel cell (SOFC) have been receiving significant attention for future energy storage and hydrogen production applications. This research focuses on the electrolyte material which can be used for both SOEC and SOFC particularly on 8 mol% yttria-stabilized zirconia (8YSZ) electrolyte material. YSZ has been used because of its high stability at elevated temperature, excellent mechanical and chemical properties and its excellent oxygen ion conductivity. This study aims to determine the effect of precursor’s grain size and sintering temperature on the properties of YSZ as electrolyte material for SOEC. Solid-state sintering was done to transform the ceramic powders into solid compacts. Pure cubic fluorite structure YSZ was achieved by both micrograined and nanograined YSZ sintered at 1200°C and 1500°C. It was observed that the micrograined YSZ sample sintered at 1500°C achieved the highest relative density at 99.48%. SEM images showed a smooth and compact microstructure for micrograined YSZ while small pores were still present in the micrographs of nanograined YSZ. However, interestingly, the nanograined YSZ has higher total conductivity as compared to the micrograined YSZ.

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