Evaluation of BaCo0.Fe-4(0).4Zr0.2-xNixO3-delta perovskite cathode using nickel as a sintering aid for IT-SOFC

Funding Agencies|Laser and Optronics Center (Department of Physics), UET, Lahore, Pakistan
In this research work, BaCo0.Fe-4(0).4Zr0.2-xNixO3-delta (x = 0, 0.01, 0.02, 0.03, 0.04) perovskite cathode material for IT-SOFC is synthesized successfully using a combustion method and sintered at low temperature. The effects of nickel as a sintering aid on the properties of BaCo0.Fe-4(0).Zr-4(0).O-2(3-delta) are investigated through different characterization methods. The addition of nickel increased the densification and grain growth at a lower sintering temperature 1200 degrees C. XRD analysis confirms a single phase of BaCo0.Fe-4(0).Zr-4(0).O-2(3-delta), and an increase in crystalline size is observed. SEM micrographs show formation of dense microstructure with increased nickel concentration. TGA analysis revealed that BaCo0.Fe-4(0).4Zr0.2-xNix cathode materials are thermally stable within the SOFC temperature range, and negligible weight loss of 2.3% is observed. The bonds of hydroxyl groups and metal oxides are confirmed for all samples through FTIR analysis. The highest electrical properties are observed for BaCo0.Fe-4(0).4Zr0.2-xNix (x = 0.04) due to increased densification and electronic defects compared to other compositions. The maximum power density of 0.47 W cm(-2) is obtained for a cell having cathode material BaCo0.Fe-4(0).4Zr0.2-xNix (x = 0.02) owing to its permeable and well-connected structure compared to others.

Khalid, MehakUniv Engn & Technol, Pakistan (författare)
Rafique, MuhammadUniv Sahiwal, Pakistan (författare)
Ahmad, NaveedUniv Educ, Pakistan (författare)
Siraj, KhurramUniv Engn & Technol, Pakistan (författare)
Raza, RizwanLinköpings universitet,Halvledarmaterial,Tekniska fakulteten,COMSATS Univ Islamabad, Pakistan(Swepub:liu)rizra21 (författare)
Sadiq, MuhammadUniv Engn & Technol, Pakistan (författare)
Ahsan, MuhammadHuazhong Univ Sci & Technol, Peoples R China (författare)
Ghaffar, AbdulGovt Coll Univ, Pakistan (författare)
Ashfaq, AminaUniv Engn & Technol, Pakistan (författare)
Univ Engn & Technol, PakistanUniv Sahiwal, Pakistan (creator_code:org_t)

Av författaren/redakt...: Irshad, Muneeb; Khalid, Mehak; Rafique, Muhamma ...; Ahmad, Naveed; Siraj, Khurram; Raza, Rizwan; visa fler...; Sadiq, Muhammad; Ahsan, Muhammad; Ghaffar, Abdul; Ashfaq, Amina; visa färre...

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