| Catalogue Code | IN-Zr |
| CAS No. | 68937-53-1 |
| Chemical Formula | Stabilized ZrO2 |
| Compound Name | Stabilized Zirconium Dioxide |
Introduction
Stabilized Zirconium Dioxide (ZrO₂) is a crucial material in fuel cell technology, known for its high ionic conductivity, thermal stability, and durability. When stabilized with oxides like yttria (Y₂O₃) or calcia (CaO), it maintains its cubic crystal structure at high temperatures, making it ideal for use in solid oxide fuel cells (SOFCs). ZrO₂ is primarily an electrolyte in SOFCs, efficiently conducting oxygen ions between the cathode and anode. Its ability to operate at elevated temperatures (600-1000°C) and its mechanical strength makes it highly suitable for high-temperature fuel cell applications, enhancing both performance and longevity.
Properties of Stabilised Zirconium Dioxide
The properties of Stabilized Zirconium Dioxide are as follows:
| Properties | Details |
| Appearance | White Powder |
| Molar Mass | 123.218 g/mol |
| Density | 5.68 g/cm3 |
| Thermal Conductivity | 1.34 Wm−1K−1 |
| Melting Point | 2690 °C |
Applications
Stable zirconium dioxide (ZrO2) is quickly gaining popularity due to its critical role in fuel cell technology, especially in solid oxide fuel cells and other electrochemical applications. The following are of paramount importance:
- Electrolyte Material Stabilized: ZrO2 is highly promising for SOFCs due to its ionic solid conductivity at elevated temperatures. This ensures that the ionic movement within the fuel cell is complete, allowing it to work efficiently and generate electricity from hydrogen and oxygen.
- Electrode Support: It is a supportive material for a fuel cell’s anode and cathode electrodes. The material also provides excellent thermal stability and tolerates the interface of several electrode materials. Thus, it improves the fuel cell’s overall performance while increasing its lifetime.
- Thermal Barrier Coatings: Stabilized ZrO2 is a thermal barrier coating in high-temperature fuel cells. It protects the underneath materials from thermal degradation, allowing the component to have high integrity and efficiency for longer operational times.
- Durability and Stability: Stabilized ZrO2 is the best choice for materials operable at extreme conditions, ensuring durability and sustainability in performance and stability in fuel cell systems.d performance in various applications.
FAQs
Answere: Stabilized zirconium dioxide (ZrO2) is simply a modification of zirconium oxide, with additions such as Y3+, CaO, and MgO added to stabilize temperatures with improved ionic conductivity to a compound tailored to fuel cell applications.
Answere: The stabilized ZrO2 improves fuel cells' general efficiency, durability, and performance by offering a stable electrolyte and enhancing electrode compatibility. Its resistance to phase transformation and thermal shock contributes to longer operational life.
Answere: Yes, it is used in gas sensors, thermal barrier coatings, electrolytic hydrogen production, and other advanced ceramics applications, giving solid-stabilized zirconium dioxide more versatile usage in various industries.
sachin
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