| Catalogue Code | IN-GDC |
| CAS No. | 12064-62-9 |
| Chemical Formula | Ce0.9Gd0.1 oxide |
| Compound Name | Cerium Gadolinium Oxide |
| Surface Area (m2/g) | 10-15 |
| Particle size d50 (μm) | <0.5 |
| Purity (%) | >=99.9 |
Introduction
Ce₀.₉Gd₀.₁O₂ is a composite material that acts as an electrolyte in Solid Oxide Fuel Cells (SOFCs). Doping cerium oxide (CeO₂) with 10% gadolinium oxide (Gd₂O₃) improves the ionic conductivity and electrochemical stability at intermediate temperatures (600°C to 800°C). Therefore, it can be a potential alternative to conventional electrolytes like YSZ. Its redox stability and thermal resistance under fuel cell operating conditions also enhance the general performance and efficiency. Moreover, the fact that it is relatively cheaper than most of the other materials makes it ideal for scalable fuel cell technologies.
Properties of Cerium Gadolinium Oxide
The Properties of Cerium Gadolinium Oxide (Ce0.9Gd0.1 oxide) are as follows:
| Properties | Details |
| Appearance | Powder |
| Ionic Conductivity | ~0.1–0.2 S/cm at 600°C to 800°C |
| Thermal Conductivity | ~1.5–2.5 W/m·K varies with composition. |
| Crystal density | 7.26 g/cm3 |
Applications
The applications of Cerium Gadolinium Oxide (Ce0.9Gd0.1 oxide) are as follows:
- It acts as an electrolyte in Solid Oxide Fuel Cells (SOFCs) for efficient energy conversion by allowing oxygen ion conduction between cathode and anode at intermediate to high temperatures (600°C–800°C).
- The material is used in some SOFC parts because of its electrochemical stability and excellent ORR performance at high temperatures.
- It is well suited for intermediate-temperature SOFCs, offering a balance of ionic conductivity, thermal stability, and cost-effectiveness compared with other electrolyte materials.
- It is used in high-temperature electrolysis systems to generate hydrogen, a clean energy source for fuel cells or industrial use.
- In fuel cell stacks, Ce₀.₉Gd₀.₁O₂ is used in multiple electrolyte layers, enhancing power output and efficiency through effective ion transport at high temperatures.
FAQs
Answere: The material improves efficiency by offering efficient transport of ions between the cathode and anode, resulting in improved power output and reduced energy loss at working temperatures.
Answere: Ce₀.₉Gd₀.₁O₂ has good long-term stability but tends to degrade, just like most other fuel cell materials, under prolonged operation at high temperatures, especially with impurities and fluctuating conditions.
Answere: Fuel cells based on Ce₀.₉Gd₀.₁O₂ are used in portable power systems because they are stable and reliable at intermediate temperatures. This type of energy provides clean and reliable power in off-grid or remote applications.
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