Description

Key Properties & Advantages
NiO-3YSZ??s performance stems from its balanced NiO:3YSZ ratio and optimized particle characteristics:

Controlled Particle Size (0.2?C0.4 ??m): Enables dense sintering at moderate temperatures (1300?C1400??C), forming a robust anode support with interconnected porosity (critical for fuel diffusion) while ensuring strong adhesion to electrolyte layers.
High Specific Surface Area (8?C14 m2/g): Promotes efficient reduction of NiO to metallic Ni (post-fabrication), creating a conductive network for electron transport and enhancing catalytic activity for fuel oxidation (H?, CH?).
Low Moisture Content (<1 wt.%): Prevents agglomeration during storage and processing, ensuring uniform dispersion in green bodies, tapes, or slurries??critical for consistent microstructure in anode supports. 1:1 NiO:3YSZ Ratio: Balances electronic conductivity (from Ni) and structural/chemical stability (from 3YSZ), with 3YSZ mitigating nickel sintering and providing oxygen ion conduction pathways. Thermal Compatibility: Matches the thermal expansion coefficient of 3YSZ electrolytes, reducing interfacial stress during SOFC operation and improving long-term durability. Post-Reduction Activity: Upon reduction in H?, NiO converts to metallic Ni, forming a porous, conductive network that efficiently catalyzes fuel oxidation reactions (e.g., H? ?? 2H? + 2e?). Core Applications Anode-Supported Solid Oxide Fuel Cells (SOFCs) NiO-3YSZ is the industry standard for anode supports in SOFCs, where structural integrity and fuel oxidation are paramount: Anode Substrates: Serves as the mechanical backbone of anode-supported SOFCs, providing strength to the cell while hosting the fuel oxidation reaction. Its porous structure (after sintering) allows fuel gases (H?, syngas) to diffuse to the active anode-electrolyte interface. Active Anode Layers: Can be tailored with additional porosity to enhance fuel diffusion, supporting high-performance in both hydrogen and hydrocarbon-fueled SOFCs. Composite Anodes: Compatible with other materials (e.g., ceria-based oxides) to improve tolerance to sulfur or carbon deposition in hydrocarbon fuels. SOFC Stack Manufacturing Scalable Production: Suitable for tape casting, extrusion, or slip casting??enabling mass production of thin, lightweight anode supports for high-power SOFC stacks used in distributed power generation and industrial applications. Technical Specifications The parameter details are as follows: Composition is NiO : 3YSZ = 1:1 (3YSZ = (Y?O?)?.??(ZrO?)?.??); Particle Size (D50) is 0.2?C0.4 ??m; Specific Surface Area is 8?C14 m2/g; Moisture Content is <1 wt.%; Color is grayish-green crystalline powder (NiO dominant); Reduction Behavior is converting to Ni-3YSZ in H? (300?C600??C), forming a porous conductive network. Quality Assurance Each batch of NiO-3YSZ undergoes rigorous testing to ensure reliability: X-ray diffraction (XRD) to confirm phase purity of NiO and 3YSZ. Particle size analysis (laser diffraction) to verify 0.2?C0.4 ??m distribution. BET surface area measurement to validate 8?C14 m2/g range. Moisture content testing to ensure compliance with <1 wt.% specification. Sintering test (optional) to confirm porosity and mechanical strength post-sintering. A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties.