Description

Key Structural & Functional Advantages
MOF-801’s performance stems from its robust zirconium-fumarate architecture and tailored properties:

Zirconium-Fumarate Framework:
High Thermal Stability: Withstands temperatures up to 400°C under inert conditions, ensuring reliability in high-temperature processes .
Chemical Resilience: Stable across a broad pH range (1–12) and resistant to organic solvents, making it suitable for harsh industrial environments .
Microporous Architecture:
Ultra-Small Pores (~0.4 nm): Enables molecular sieving of small gases (e.g., H₂, CO₂) and selective adsorption of fluoride ions and toxic metals .
High Surface Area (≥900 m²/g): Maximizes adsorption capacity for water vapor, pollutants, and gas mixtures .
Hydrophilicity & Water Management:
Atmospheric Water Harvesting: Efficiently adsorbs water vapor from air (even at low humidity), releasing freshwater upon heating—critical for arid-region water supply .
Cooling System Adsorbent: Facilitates adsorption-driven cooling cycles by reversibly capturing and releasing water .
Tunable Reactivity:
Open Metal Sites: Zirconium nodes enable Lewis acid catalysis and redox activity for hydrogen storage, photocatalysis, and environmental remediation .
Functionalization Compatibility: Supports post-synthetic modification (e.g., amine grafting) to enhance selectivity in gas separation or catalysis .
Core Applications
1. Atmospheric Water Harvesting
Freshwater Generation: Adsorbs water vapor from humid air (RH ≥30%) and releases pure water upon mild heating (≤100°C), achieving yields of 1.02 g H₂O/g MOF under arid conditions .
Sustainable Cooling: Integrates into adsorption chillers to replace traditional vapor-compression systems, reducing energy consumption by 30–50% .
2. Gas Separation & Storage
Hydrogen Storage: High surface area and microporosity enable reversible H₂ adsorption (up to 2.0 wt% at 77K), supporting clean energy applications .
Propylene/Propane Separation: Exhibits a separation factor of 318 for C₃H₆/C₃H₈ mixtures via kinetic sieving, outperforming traditional zeolites .
CO₂ Capture: Selectively adsorbs CO₂ from flue gases (adsorption capacity: 3.5 mmol/g at 298K, 1 bar) with rapid adsorption-desorption kinetics .
3. Catalysis & Environmental Remediation
Photocatalytic Oxidation: Drives light-induced degradation of organic pollutants (e.g., tetracycline antibiotics) under visible light, achieving 90% degradation efficiency within 3 hours .
Fluoride Removal: Selectively captures fluoride ions from aqueous solutions (e.g., brick tea infusions), achieving >80% removal within 5 minutes with minimal interference from other compounds .
Heavy Metal Adsorption: Chelates toxic metal ions (e.g., Pb²⁺, Hg²⁺) via hydroxyl groups on the framework, with adsorption capacities exceeding 200 mg/g for select metals .
4. Industrial Cooling & Energy Systems
Adsorption-Based Cooling: As a desiccant in adsorption chillers, MOF-801 enables low-grade heat (e.g., solar or waste heat) to power cooling cycles, reducing reliance on synthetic refrigerants .
Thermal Energy Storage: Stores thermal energy via reversible water adsorption/desorption, supporting grid stabilization and renewable energy integration .
Technical Specifications
Parameter Details
Chemical Composition Zirconium fumarate (Zr₆O₄(OH)₄(C₄H₂O₄)₆)
Appearance White crystalline powder
Particle Size ~600 nm (monodisperse)
BET Surface Area ≥900 m²/g (typically 950–1100 m²/g)
Pore Size ~0.4 nm (microporous)
Thermal Stability Up to 400°C (inert atmosphere)
pH Stability 1–12 (aqueous solutions)
Water Adsorption 1.02 g H₂O/g MOF at 30% RH, 25°C
Fluoride Adsorption >80% removal in 5 min (brick tea model)
Quality Assurance
Each batch of KAR-F37 undergoes rigorous characterization: