A composite cathode based on scandium doped titanate with enhanced electrocatalytic activity towards direct carbon dioxide electrolysis

2014 ◽  
Vol 16 (39) ◽  
pp. 21417-21428 ◽  
Author(s):  
Liming Yang ◽  
Kui Xie ◽  
Lan Wu ◽  
Qingqing Qin ◽  
Jun Zhang ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Catalytic Activity ◽  
Electrocatalytic Activity ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Ion Conducting ◽  
Oxide Ion

The cathode with scandium-doped titanate remarkably improves the catalytic activity for carbon dioxide electrolysis in an oxide-ion-conducting solid oxide electrolyser.

Electrochemical Investigation of La0.2Sr0.8TiO3+δ-Ce0.8Sm0.2O2-δ Composite Cathode for the Direct High Temperature Steam Electrolysis

2014 ◽  
Vol 936 ◽  
pp. 464-470
Author(s):  
Guo Jian Wu ◽  
Kui Xie ◽  
Yu Cheng Wu
Keyword(s):  
Electrical Conductivity ◽  
High Temperature ◽  
Composite Cathode ◽  
Solid Oxide ◽  
Electrochemical Investigation ◽  
Reducing Gas ◽  
Direct Steam ◽  
Ion Conducting ◽  
High Temperature Steam ◽  
Oxide Ion

This paper investigates a composite cathode La0.2Sr0.8TiO3+δ-Ce0.8Sm0.2O2-δ (LSTO-SDC) for the direct steam electrolysis in an oxide-ion-conducting solid oxide electrolyzer. The dependences of electrical conductivity of the reduced LSTO on temperature and oxygen partial pressure are studied and further correlated to the electrochemical properties of the cathode in symmetric cell LSTO-SDC/YSZ/LSTO-SDC and solid oxide electrolyzer LSTO-SDC/YSZ/LSM-SDC, respectively. Current efficiencies of the solid oxide electrolyzer with LSTO-SDC cathode were found to be 92.38% and 91.17% with or without reducing gas flowing over them under the applied voltage of 1.8 V at 800 °C, respectively.

Composite cathode based on Fe-loaded LSCM for steam electrolysis in an oxide-ion-conducting solid oxide electrolyser

2013 ◽  
Vol 239 ◽  
pp. 332-340 ◽  
Author(s):  
Shanshan Xu ◽  
Shigang Chen ◽  
Meng Li ◽  
Kui Xie ◽  
Yan Wang ◽  
...  
Keyword(s):  
Composite Cathode ◽  
Solid Oxide ◽  
Ion Conducting ◽  
Oxide Ion

Electrochemically Induced Nickel/Ceria Interaction in Solid Oxide Electrochemical Cells with Oxide Ion Conducting Electrolyte

2019 ◽  
Vol 166 (10) ◽  
pp. F587-F593 ◽  
Author(s):  
Fangfang Wang ◽  
Haruo Kishimoto ◽  
Tomohiro Ishiyama ◽  
Katherine Develos-Bagarinao ◽  
Katsuhiko Yamaji ◽  
...  
Keyword(s):  
Solid Oxide ◽  
Electrochemical Cells ◽  
Ion Conducting ◽  
Oxide Ion

A high-strength Sm-doped CeO2 oxide-ion conducting electrolyte membrane for solid oxide fuel cell application

RSC Advances ◽  
2013 ◽  
Vol 3 (38) ◽  
pp. 17395 ◽  
Author(s):  
Yingchao Dong ◽  
Dongfeng Li ◽  
Xuyong Feng ◽  
Xinfa Dong ◽  
Stuart Hampshire
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
High Strength ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrolyte Membrane ◽  
Fuel Cell Application ◽  
Doped Ceo2 ◽  
Ion Conducting ◽  
Oxide Ion

An intermediate temperature solid oxide fuel cell utilizing superior oxide ion conducting electrolyte, doubly doped LaGaO3 perovskite

Ionics ◽  
1998 ◽  
Vol 4 (5-6) ◽  
pp. 395-402 ◽  
Author(s):  
T. Ishihara ◽  
M. Honda ◽  
T. Shibayama ◽  
H. Furutani ◽  
Y. Takita
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
Ion Conducting ◽  
Oxide Ion

Electrolysis of H2O and CO2 in an oxygen-ion conducting solid oxide electrolyzer with a La0.2Sr0.8TiO3+δ composite cathode

2012 ◽  
Vol 218 ◽  
pp. 244-249 ◽  
Author(s):  
Shisong Li ◽  
Yuanxin Li ◽  
Yun Gan ◽  
Kui Xie ◽  
Guangyao Meng
Keyword(s):  
Composite Cathode ◽  
Solid Oxide ◽  
Oxygen Ion ◽  
Ion Conducting

Reversible Solid State Fe-Air Rechargeable Battery Using LaGaO3 Based Oxide Ion Conducting Electrolyte

2014 ◽  
Vol 783-786 ◽  
pp. 1680-1685
Author(s):  
Tatsumi Ishihara ◽  
Atsushi Inoishi ◽  
Sintaro Ida
Keyword(s):  
Energy Density ◽  
High Energy ◽  
Solid Oxide ◽  
High Energy Density ◽  
Storage Device ◽  
Cycle Stability ◽  
Ion Conductor ◽  
Oxide Ion Conductor ◽  
Ion Conducting ◽  
Oxide Ion

The combination of solid oxide fuel cell technology with Fe-air battery concept was proposed by using H2/H2O as a redox mediator and LaGaO3based oxide for electrolyte. Since large internal resistance and large degradation during charge and discharge cycles are observed on anode, improvement in discharge potential and cycle stability are strongly required by improving stability of anode. In this study, cermet anode consisting of Ni-Fe alloy combined with oxide ion conductor was investigated. It was found that by using cermet anode of Ni-Fe combined with Ce0.6Mn0.3Fe0.1O2(CMF), the observed energy density of the cell is improved to be 1109 Wh/Kg-Fe at 10 mA/cm2, 873 K, which is about 92% of the theoretical energy density assuming the formation of Fe3O4(1290 Wh/Kg-Fe). Cycle stability was also much improved on the cell using Ni-Fe-CMF anode comparing with that of Ni-Fe metal because of suppressed aggregation of Ni by mixing with CMF. Electrochemical charge-discharge measurement at 773 K showed excellent cycle stability over 30 cycles with high energy density (Round trip efficiency is higher than 80 %). The excellent performance and stability with operating at lower temperature promise this Fe-air solid oxide battery as the next generation energy storage device for averaging electricity and electric vehicle.

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