scholarly journals Synthesis and Characterisation of Mixed Conducting Perovskite Type Oxide and Its Electrochemical Application to Electrode Material for Solid Oxide Fuel Cell

2007 ◽  
Vol 10 (2) ◽  
pp. 116-125 ◽  
Author(s):  
Yu-Mi Kim ◽  
Su-Il Pyun ◽  
Gyoung-Ja Lee ◽  
Ju-Sik Kim
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Electrode Material ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Perovskite Type Oxide ◽  
Electrochemical Application ◽  
Perovskite Type

Stability and Transport Conductivity of Perovskite Type BaZrxCe0.8-xNd0.2O3-δ

2012 ◽  
Vol 554-556 ◽  
pp. 404-407 ◽  
Author(s):  
Shi Jing Zhan ◽  
Xue Feng Zhu ◽  
Wei Ping Wang ◽  
Wei Shen Yang
Keyword(s):  
Carbon Dioxide ◽  
Fuel Cell ◽  
Citric Acid ◽  
Solid Oxide Fuel Cell ◽  
Chemical Stability ◽  
High Conductivity ◽  
Solid Oxide ◽  
Good Stability ◽  
Oxide Fuel ◽  
Perovskite Type

Solid oxide components such as electrolyte for solid oxide fuel cell require chemical stability and high conductivity. Substituting Zr for Ce in BaCe0.8Nd0.2O3-δ improves the chemical stability but reduces conductivity. The objective of this work was to study the optimization of conductivity and chemical stability by changing the ratio of Ce to Zr in BZCN. Perovskite type BaZrxCe0.8-xNd0.2O3-δ (BZCN) powders were prepared by an EDTA–citric acid (EC) process. BaZrxCe0.8-xNd0.2O3-δ (x≥0.4) oxides show good chemical stability against carbon dioxide. The conductivities of sintered samples increased with the temperature and decrease with their Zr content. The good chemical stability and conductivity of BaZr0.4Ce0.4Nd0.2O3-δ is potential to be practically used with both high conductivity and good stability

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.

Synthesize and Evaluation of Electrospun Perovskite (Ba0.5Sr0.5Co0.2Fe0.8O3- δ) Nanofibers for Intermediate Temperature Solid- Oxide Fuel Cell

2011 ◽  
Vol 52-54 ◽  
pp. 1544-1550 ◽  
Author(s):  
Samaneh Shahgaldi ◽  
Zahira Yaakob ◽  
Dariush Jafar Khadem ◽  
Wan Ramli Wan Daud
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Sol Gel ◽  
Solid Oxide ◽  
Intermediate Temperature ◽  
Oxide Fuel ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
Air Atmosphere ◽  
Perovskite Type

In recent years, one dimensional nanostructure, nanofibers with unique properties have been subjected of intense research due to potential properties in many applications. This study presents synthesize of Perovskite-type Ba0.5Sr0.5Co0.2Fe0.8O3−δ (BSCF) nanofibers using sol-gel via electrospinning as a cathode for intermediate temperature solid oxide fuel cell. BSCF nanofibers are prepared by treating electrospun polyvinyl Pyrrolidon/ Ba0.5Sr0.5Co0.8Fe0.2O3−δ composite fibers at high temperature in an air atmosphere. BSCF nanofibers were characterized by x-ray diffraction (XRD) to observe desired structure, scanning electron microscopy (SEM) to investigated the morphology of fibers, and Brunauer, Emmett and Teller (BET) for measuring the surface area. To the best of our knowledge, investigation on Ba0.5Sr0.5 Co0.2 Fe 0.8O3−δ nanofibers has not been reported up to now.

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