Description
Key Properties & Advantages
MIL-53(Al) (KAR-F46)’s performance is defined by its flexible framework and aluminum-based chemistry:
Flexible Porous Structure: Exhibits a unique “breathing” behavior—pressure and temperature changes induce reversible pore expansion/contraction, dynamically tuning selectivity for gas adsorption. This adaptability is critical for targeted separation processes.
High Surface Area (≥1000 m²/g): Maximizes active sites for gas interaction, enhancing adsorption capacity in CO₂ capture and gas separation applications.
Aluminum-Based Stability & Safety:
Chemical Stability: Maintains structural integrity in aqueous solutions (pH 3–11) and organic solvents, ensuring durability in industrial environments.
Thermal Resilience: Withstands temperatures up to 300°C (inert atmosphere), supporting high-temperature adsorption-desorption cycles.
Low Toxicity: Aluminum’s inherent biocompatibility makes it suitable for applications requiring minimal environmental impact, unlike heavy metal-based MOFs.
Uniform Particle Size (1–3 μm): Ensures consistent packing in columns, efficient mass transport, and reliable performance in scalable systems (e.g., gas separation modules).
Core Applications
CO₂ Capture & Gas Separation
MIL-53(Al)’s flexible structure makes it a standout for carbon capture and gas separation:
CO₂ Selective Adsorption: Its “breathing” behavior enhances selectivity for CO₂ over N₂, CH₄, and other gases, enabling efficient capture from flue gases, biogas, and ambient air.
Dynamic Gas Separation: Pressure/temperature adjustments allow tailored separation of gas mixtures (e.g., CO₂/CH₄, C₂H₄/C₂H₆), adapting to varying industrial stream compositions without reconfiguring equipment.
Catalytic Sensors & Harmful Gas Detection
Toxic Gas Sensing: Demonstrates high sensitivity to harmful gases like isobutyraldehyde (a volatile organic compound, VOC), making it a promising material for catalytic sensors in industrial safety and air quality monitoring.
Sensor Stability: Aluminum’s low reactivity ensures long-term sensor performance, with minimal drift in detection accuracy over time.
Technical Specifications
Parameter Details
CAS Number 654061-20-8
Product Name MIL-53(Al)
Model KAR-F46
Metal Node Aluminum (Al³⁺)
Particle Size 1–3 μm
BET Surface Area ≥1000 m²/g
Pore Size 0.4–0.8 nm (flexible, “breathing” pores)
Thermal Stability Up to 300°C (inert atmosphere)
pH Stability 3–11 (aqueous solutions)
Quality Assurance
Each batch of KAR-F46 undergoes rigorous testing to ensure consistency:
X-ray Diffraction (XRD): Confirms “breathing” behavior and structural integrity.
Nitrogen Adsorption-Desorption: Verifies surface area (≥1000 m²/g) and pore size distribution.
Gas Adsorption Testing: Validates CO₂ selectivity and responsiveness to pressure/temperature changes.
Particle Size Analysis: Ensures uniformity (1–3 μm) via laser diffraction.
A certificate of analysis (CoA) is provided with each order, documenting batch-specific properties.
