My research group worked on production and characterizations of novel intermediate or low-temperature SOFC electroceramics such as Zirconia-based, Bismuth-based and Barium Zirconate-based between 2010 and 2023 . Our studies has been focused on the Bi2O and ZrO2 based anion conductors and perovskite structured BaZrO3 and BaCeO3 based proton conductor solid electroceramics. 

In this laboratory, we synthesized the electroceramic powder materials with nanoscale dimensions. The forming of these powders has been applied by tape casting or screen-printing techniques as thin sheet materials. These materials are ionic conductive materials and their dielectric constants are very high at room temperature. These energy materials are classified as electroceramics and they are ionic conductive materials and can be used in electrochemical applications such as some fuel cell types, sensors and solid-state batteries as a solid electrolyte material.

Laboratory Skills;

• Synthesizing of electroceramic powder materials (Zirconia-based and Bismuth-based solid electrolytes) for Intermediate Temperature Solid Oxide Fuel Cells;

  • Solid State Synthesis Method

  • Pechini Synthesis Method (Modified Sol-Gel)

• Forming of powder ceramic materials;

  • Tape Casting

  • Screen Printing

  • Lamination

  • Pellet form with hydraulic press and/or cold isostatic press

• Characterization of powder or shaped electroceramic materials;

  • Effect of heat treatment studies to obtain the powders with single phase. 

  • Powder Indexing and Phase Determination with XRD Analysis

  • Microstructure Characterization with SEM Analysis

  • Thermal Properties with DTA and TGA

  • Electrical Conductivity Characterization

    • Four-Point Probe D.C. Method for determination of total conductivity measurement and effect of geometry on conductivity values using Geometric Factor expressions. 

    • Effect of parameters on conductivity; temperature, Oxygen partial pressure, heat treatment with time (aging time determination).

• Single Solid Oxide Fuel Cell fabrication and performance measurements by electrical power testing.