scholarly journals System Efficiency of High-temperature Water Electrolysis by Planar Solid Oxide Electrolysis Cell

2000 ◽  
Vol 120 (5) ◽  
pp. 694-703 ◽  
Author(s):  
Takeshi Hikosaka ◽  
Mitsunori Iwata ◽  
Kazuo Onda ◽  
Kohei Ito ◽  
Susumu Nagata
Keyword(s):  
High Temperature ◽  
Water Electrolysis ◽  
Solid Oxide ◽  
Electrolysis Cell ◽  
System Efficiency ◽  
High Temperature Water ◽  
Solid Oxide Electrolysis ◽  
Solid Oxide Electrolysis Cell ◽  
Temperature Water

Fabrication of Cathode-supported Tubular Solid Oxide Electrolysis Cell for High Temperature Steam Electrolysis

2011 ◽  
Vol 14 (3) ◽  
pp. 179-182 ◽  
Author(s):  
Le Shao ◽  
Shaorong Wang ◽  
Jiqin Qian ◽  
Yanjie Xue ◽  
Renzhu Liu
Keyword(s):  
High Temperature ◽  
Dip Coating ◽  
Solid Oxide ◽  
Electrolysis Cell ◽  
Strong Impact ◽  
Mass Transportation ◽  
Oxide Fuel ◽  
Solid Oxide Electrolysis ◽  
Solid Oxide Electrolysis Cell ◽  
High Temperature Steam

The cathode-supported tubular solid oxide electrolysis cell (SOEC) fabricated by dip-coating and co-sintering techniques have been studied for high temperature steam electrolysis application. The microstructure and electrochemical performeances were investigated in both SOEC and solid oxide fuel cell (SOFC) modes. In SOFC model, the maximum power densitity reached 390.7, 311.0 and 248.3 mW cm-2 at 850, 800, and 700 °C, respectively, running with H2 (105 mL min-1) and O2 (70 mL min-1) as working gases. In SOEC mode, the results indicated that the steam ratio had a strong impact on the performance of the tubular SOEC, and it’s better to operate the tubular SOEC in high steam ratio. I-V curves and EIS results suggested that the microstructure of the tubular SOEC needs to be optimized for mass transportation.

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