Featured Commercial MOF Products (Catalog Part I)
Select from our high-purity laboratory evaluation lots to commercial bulk powders engineered for demanding industrial adsorption matrixes.
Technical Whitepaper: MIL-101(Al) Chemical Architecture & Performance Dynamics
Metal-Organic Frameworks (MOFs) represent a transformative paradigm shift in modern material science, bridging inorganic chemistry and polymer design to yield crystalline porous materials with unprecedented internal surface areas. Among the thousands of synthetic frameworks cataloged over the past two decades, MIL-101(Al)—a material of the Institute Lavoisier family composed of aluminium(III) metal clusters linked by 1,4-benzenedicarboxylate (BDC, terephthalic acid)—stands as one of the most commercially viable, chemically versatile, and thermally resilient porous networks ever synthesized.
Structurally, MIL-101(Al) crystallizes in a cubic porous framework with large, hierarchical cage-like cavities. It exhibits two distinct types of mesoporous cages with internal diameters of approximately 2.9 nm (29 Å) and 3.4 nm (34 Å), accessible through pentagonal windows (~1.2 nm) and hexagonal windows (~1.6 nm). This dual-cage topology delivers an extraordinary Brunauer-Emmett-Teller (BET) specific surface area typically ranging from 2,000 m²/g to over 3,200 m²/g, accompanied by pore volumes exceeding 1.1 cm³/g.
Synthesis Innovation: Green Solvothermal vs. Traditional Routes
Historically, the synthesis of chromium-based MIL-101(Cr) offered high chemical stability but presented severe environmental and regulatory hurdles due to the toxicity of hexavalent chromium precursors and the requirement of hydrofluoric acid (HF) mineralizers during crystallization. The transition to Aluminium-based MIL-101(Al) solves these ecological concerns by substituting non-toxic Al(III) salts (such as aluminium chloride hexahydrate or aluminium nitrate) and utilizing green, solvent-optimized synthetic pathways.
As leading global suppliers and exporters headquartered in Guangdong, China, our advanced manufacturing centers have optimized continuous green solvothermal synthesis and mechanochemical processing. By replacing toxic organic solvents like N,N-dimethylformamide (DMF) with water-ethanol systems or solvent-free mechanochemical reactive milling, we reduce manufacturing carbon footprints by up to 65% while enhancing lot-to-lot crystallographic purity.
China Factory Advantages: Scaling MIL-101(Al) from Grams to Metric Tons
While academic literature reports thousands of promising MOF structures annually, less than 1% make the leap to commercial viability due to scale-up bottlenecks, cost prohibitive linkers, and unrepeatable batch kinetics. China's mature industrial ecosystem provides an unprecedented strategic advantage for global buyers seeking reliable, high-volume MOF supply.
Raw Material Integration
Direct backward integration into China’s world-scale Petrochemical and Organic Linker supply chains ensures direct access to high-purity terephthalic acid (BDC) and basic aluminium precursor salts at unmatched cost structures.
Cost Efficiency & Scale
Operating inside specialized chemical manufacturing zones enables continuous reactor operation, lowered unit energy expenditure, and competitive factory-direct pricing for overseas procurement partners.
Rigorous QA/QC Digital Control
Every export lot undergoes comprehensive Powder X-Ray Diffraction (PXRD), N2 adsorption-desorption isotherms (BET), Thermogravimetric Analysis (TGA), and Scanning Electron Microscopy (SEM) validation.
Macro Industry Trends & Next-Generation Application Scenarios
As global industrial policies pivot toward Net-Zero carbon emissions, circular economies, and energy-dense battery architectures, MIL-101(Al) is emerging as a cornerstone material across four primary multi-billion-dollar technology sectors:
1. Carbon Capture (CCUS) & DAC
MIL-101(Al) derivatives, especially functionalized variants like NH2-MIL-101(Al), display profound affinity for CO2 molecules. The introduction of Lewis basic amine sites within the porous cage enhances CO2 selectivity over N2 and CH4, enabling low-energy desorption cycles in flue-gas scrubbing and Direct Air Capture (DAC) systems.
2. Atmospheric Water Harvesting (AWH)
Due to its characteristic step-shaped water adsorption isotherms and hydrothermal framework robustness, MIL-101(Al) efficiently adsorbs atmospheric moisture at relative humidities (RH) between 20% and 60%, releasing pristine potable water under moderate solar-thermal activation temperatures (<75°C).
3. Li-Ion Battery Separators & Electrolytes
When applied as a ultra-thin nano-coating onto lithium-ion battery polypropylene separators, sub-micron MIL-101(Al) particles homogenize lithium-ion flux, immobilize harmful polysulfides in Li-S systems, prevent lithium dendrite growth, and significantly boost thermal runaway thresholds.
4. Industrial Gas Separation & VOC Removal
With uniform pore windows and high volumetric capacity, MIL-101(Al) selectively traps Volatile Organic Compounds (VOCs) such as benzene, toluene, and xylene from industrial waste gas streams, outperforming traditional activated carbons in regeneration lifetime.
Material Benchmarking: MIL-101(Al) vs. Alternative Industrial MOFs
Selecting the correct framework requires evaluating trade-offs between surface area, moisture sensitivity, linker cost, and thermal endurance. The technical matrix below compares standard commercial grades offered by KARGEN:
| MOF Grade | Metal Node / Linker | BET Surface Area (m²/g) | Pore Volume (cm³/g) | Thermal Limit (°C) | Primary Industrial Vector |
|---|---|---|---|---|---|
| MIL-101(Al) | Aluminium / BDC | 2,200 – 3,200 | 1.10 – 1.45 | 300 °C | CO2 Capture, AWH, Battery Coatings |
| MIL-101(Cr) | Chromium / BDC | 2,800 – 3,400 | 1.20 – 1.50 | 320 °C | High-acid Catalysis, Gas Separation |
| NH2-MIL-101(Fe) | Iron / 2-NH2-BDC | 800 – 1,300 | 0.55 – 0.75 | 200 °C | Photocatalysis, Water Remediation |
| ZIF-8 | Zinc / 2-Methylimidazole | 1,300 – 1,800 | 0.60 – 0.75 | 400 °C | Hydrophobic Gas Separation, Membrane Coatings |
| HKUST-1 (Cu-BTC) | Copper / BTC | 1,500 – 2,000 | 0.70 – 0.85 | 240 °C | Gas Storage (CH4/H2), Specialty Gas Purifiers |
| Al-FUM | Aluminium / Fumarate | 900 – 1,200 | 0.45 – 0.55 | 250 °C | Desiccant Dehumidification, Heat Pumps |
Global Enterprise Procurement Guide & Customization (OEM / ODM)
Procuring MOFs at an industrial scale requires far more than purchasing laboratory powder. Overseas engineering teams require tailored particle size distributions, compatible liquid dispersions, and structured pellets for packed bed reactors. Our engineering center offers end-to-end material tailoring:
Nano to Micron Particle Sizing
Monodisperse nano-crystals (50 nm - 200 nm) for battery coatings and thin-film composite membranes, or sub-micron powders (1 µm - 5 µm) for high-rate kinetic gas adsorption.
Stable Liquid Dispersions
Ready-to-coat dispersions in Water, Ethanol, Isopropanol, NMP, or custom organic solvents with proprietary surfactant packages preventing agglomeration and settling.
Extruded Pellets & Granules
Binder-free or low-binder structured extrudates (1.5 mm - 3.0 mm spheres or cylinders) engineered to withstand high mechanical crush strength in industrial adsorption columns.
Specialized MOF Frameworks & Derivatives (Catalog Part II)
Discover additional high-surface-area frameworks engineered for specialized gas separation, drug delivery, and advanced catalysis.
Technical FAQ: MIL-101(Al) Procurement & Handling
Answers to critical engineering and logistical questions raised by global R&D directors and procurement executives.
What is the moisture and hydrothermal stability of MIL-101(Al)?
Unlike moisture-sensitive frameworks such as HKUST-1, MIL-101(Al) exhibits exceptional hydrothermal stability due to the strong coordination bonds between trivalent aluminium ions (Al3+) and carboxylate oxygen atoms of the BDC linker. It retains its crystalline structural integrity and BET surface area even after prolonged exposure to humid air, liquid water immersion, and multiple steam-regeneration cycles up to 100°C.
How does MIL-101(Al) compare to MIL-101(Cr) in environmental compliance?
MIL-101(Cr) utilizes chromium metal nodes, which face stringent REACH and RoHS regulatory scrutiny in Europe and North America due to potential hexavalent chromium contamination risks during synthesis or disposal. MIL-101(Al) utilizes non-toxic, earth-abundant aluminium, making it fully environmentally compliant, safe for commercial HVAC water-harvesting systems, and easier to handle in mass manufacturing environments.
What are the recommended degassing and activation parameters before use?
To evacuate trapped moisture or residual synthesis solvents from the mesoporous cages, we recommend thermal degassing at 120°C to 150°C under vacuum (<10 Pa) for 6 to 12 hours. For continuous industrial operations, dry nitrogen or air purge at 130°C effectively regenerates the adsorbent bed.
Can KARGEN supply sample quantities for preliminary laboratory evaluation?
Yes. Qualified corporate R&D teams and university research partners can request 1 g to 5 g evaluation sample lots. Batch-specific Certificates of Analysis (COA), PXRD patterns, and N2 adsorption BET isotherms are included with every sample shipment.
What export documentation and shipping terms are available for bulk orders?
We provide comprehensive export documentation including SDS (Safety Data Sheets complying with GHS), COA, ISO9001 certificates, non-dangerous goods freight classifications, and Certificate of Origin. Standard shipping terms include FOB, CIF, DDP, and Express Courier (DHL/FedEx) for evaluation lots.