Precision-Engineered Amine-Functionalized Zirconium Metal-Organic Frameworks for High-Selectivity Direct Air Capture, Heterogeneous Catalysis, and Water Remediation.
Explore our flagship industrial MOF powders engineered for carbon management, gas separation, and advanced catalytic applications.
An exhaustive white-paper analysis of 2-aminoterephthalate Zr-MOF coordination physics, pore geometry, and chemical stability mechanisms.
NH2-UiO-66 (Universitetet i Oslo #66-NH2) features a face-centered cubic (fcc) lattice constructed from 12-connected hexanuclear zirconium clusters $[Zr_6O_4(OH)_4]^{12+}$ linked by 2-aminoterephthalic acid ($BDC-NH_2$) linkers. The strong covalent-like $Zr-O$ coordination bonds (bond energy $\sim 750\text{ kJ/mol}$) impart unprecedented hydrothermal, mechanical, and chemical stability across pH 1 to 10.
The crystallographic structure encompasses two distinct cage geometries: octahedral cages ($\sim 11\,\text{\AA}$ diameter) and tetrahedral cages ($\sim 8\,\text{\AA}$ diameter), interconnected by narrow triangular pore windows ($\sim 6\,\text{\AA}$). KARGEN's continuous solvothermal synthesis yields BET specific surface areas exceeding $1150\text{ m}^2/\text{g}$ with total micropore volumes of $0.48-0.55\text{ cm}^3/\text{g}$.
The pendant aromatic primary amine ($-NH_2$) groups introduce a strong localized dipole moment within the pore cavities. This significantly enhances quadrupole interaction with polar gas molecules like $CO_2$, increasing static adsorption heat ($Q_{st}$) to $38-42\text{ kJ/mol}$ while providing reactive nucleophilic sites for post-synthetic modification (PSM).
Technical Distinction (Information Gain): Unlike un-functionalized UiO-66, the inclusion of steric amine motifs within the framework windows alters kinetic diffusion pathways, conferring preferential thermodynamic selectivity for $CO_2/N_2$ (selectivity index > 55) and $CO_2/CH_4$ separations under humid industrial flue gas conditions.
| Property Parameter | Guaranteed Specification | Testing Protocol / Instrument | Industrial Significance |
|---|---|---|---|
| BET Specific Surface Area | ≥ 1,100 - 1,250 m²/g | N2 Adsorption at 77K (Micromeritics ASAP 2460) | Ensures maximal gas sorption capacity and active site density. |
| Crystallinity Index (PXRD) | ≥ 95% Sharp Single-Phase Pattern | Rigaku SmartLab X-Ray Diffractometer | Prevents structural collapse during high-pressure cyclic loading. |
| Thermal Decomposition (TGA) | Stable up to 380°C in Air / 420°C in N2 | TA Instruments TGA5500 (10°C/min) | Supports high-temperature catalytic reactions and thermal activation. |
| Average Particle Size (D50) | 0.5 μm - 2.0 μm (Customizable to 100 nm) | Laser Diffraction (Malvern Mastersizer 3000) | Optimized for slurry dispersion coating & extrusion matrix integration. |
| Pore Volume (Horvath-Kawazoe) | 0.48 - 0.52 cm³/g | Argon Adsorption Isotherm Analysis | Provides targeted molecular sieving for toxic gases and VOCs. |
| Hydrolytic Stability Range | pH 1.0 to pH 10.5 (24h Aqueous Exposure) | Post-Exposure BET & PXRD Structural Verification | Allows long-term operation in acidic flue gases and moisture-rich air. |
How KARGEN leverages fully automated continuous-flow reactors and upstream raw material integration to deliver unmatched MOF pricing and batch consistency.
Moving beyond small batch-autoclaves, KARGEN operates proprietary multi-stage continuous flow micro-reactors paired with solvent-less mechanochemical extrusion processes. This scalable synthesis reduces green-house solvent consumption by 65% and drops synthesis cycle times from 24 hours down to minutes, drastically lowering production cost per kilogram.
Situated in the Zhuhai industrial cluster, KARGEN maintains direct strategic supply ties for ultra-pure Zirconium oxychloride ($ZrOCl_2\cdot 8H_2O$) and industrial-scale 2-aminoterephthalic acid linkers. Our localized supply ecosystem protects global buyers against price spikes and geopolitical freight bottlenecks.
Every ton of manufactured NH2-UiO-66 powder undergoes real-time automated inline FTIR spectral monitoring, laser particle size testing, and automated XRD diffraction verification. Every shipment comes bundled with an unalterable digital Certificate of Analysis (CoA).
Deploying engineered microporosity and nucleophilic active sites to solve complex environmental, chemical processing, and energy challenges.
The primary amine group ($-NH_2$) attached to the benzene ring acts as a weak Lewis base site that selectively forms reversible chemical and electrostatic interactions with acidic $CO_2$ molecules. NH2-UiO-66 exhibits exceptionally low regeneration energy requirements ($\sim 65-75\text{ kJ/mol } CO_2$), allowing thermal desorption using low-grade industrial waste heat ($< 85^\circ\text{C}$).
The amino functionalization narrows the intrinsic bandgap of UiO-66 from $3.8\text{ eV}$ (UV excitation only) down to $2.8\text{ eV}$, pushing light absorption directly into the visible light spectrum ($\lambda \le 450\text{ nm}$). This enables NH2-UiO-66 to act as a highly efficient heterogeneous photocatalyst for solar-driven organic pollutant degradation, $Cr(VI)$ heavy metal reduction, and hydrogen evolution.
Per- and polyfluoroalkyl substances ("forever chemicals" / PFAS) and toxic oxo-anions ($As(V), Cr(VI), Se(VI)$) pose severe risks to drinking water systems. NH2-UiO-66 exhibits strong electrostatic attraction and coordination interactions toward perfluorinated carbon chains, achieving removal efficiencies exceeding 99.4% in continuous micro-filtration units.
NH2-UiO-66 is globally recognized for its exceptional catalytic hydrolysis capability against organophosphate chemical warfare agents (such as nerve agent stimulants DMNP and Sarin/Soman analogues). The hydroxyl-decorated $Zr_6$ nodes combined with neighboring amine bases rapidly hydrolyze toxic P-O and P-F bonds into non-toxic phosphonic acid derivatives within minutes.
Transforming native crystalline powders into robust industrial monoliths, beads, and membrane additives tailored to customer system constraints.
Depending on your manufacturing equipment, native nano-powders can cause pressure drops or dusting. KARGEN provides engineered particle sizing ranging from sub-micron dispersions (for thin-film composite membranes) up to controlled 500-micron micro-spheres.
For packed-bed gas separation towers and HVAC desiccant wheels, we supply binder-free or low-binder extruded pellets ($1.5\text{ mm} - 3.0\text{ mm}$ cylindrical extrudates) and 3D-printed honeycomb monoliths that preserve > 88% of intrinsic powder surface area while preventing bed compaction.
KARGEN works closely with global corporate R&D teams under strict Non-Disclosure Agreements (NDAs). Our PhD-led engineering teams offer custom post-synthetic modifications (e.g., metal doping, covalent grafting) tailored to your specific targeted gas or solute.
Eliminating international trade friction through full chemical compliance, transparent safety documentation, and localized logistics networks.
All KARGEN NH2-UiO-66 export batches conform strictly to international chemical control regulations. We supply complete EU REACH compliance dossiers, US TSCA inventory declaration supports, RoHS 3.0 certifications, and GHS-compliant Safety Data Sheets (SDS) in over 15 languages.
Whether shipping trial lots or full container loads (FCL), products are packaged in moisture-proof, vacuum-sealed aluminum foil bags enclosed inside UN-certified fiber drums or steel barrels, protecting material integrity against oceanic humidity and pressure fluctuations.
Our experienced export trade desk coordinates directly with freight forwarders across North America, Europe, East Asia, and the Middle East, guaranteeing fast customs clearance under HS Code 3914.00 / 2836.99 with full tariff transparency and origin certificate (Form E / CO) issuance.
A strategic preview into KARGEN’s advanced R&D pipeline for multifunctional MOF hybrid systems.
Embedding single atom transition metal sites ($Pt_1, Ru_1, Cu_1$) directly onto the amine nodes of NH2-UiO-66 to generate dual-active sites for one-step tandem conversion of captured $CO_2$ into high-value chemical intermediates (methane, ethylene, cyclic carbonates).
Integrating surface-functionalized NH2-UiO-66 sub-micron fillers into solid polymer electrolyte matrices (PEO/PVDF) for next-generation lithium-metal batteries. The open amine networks anchor anions ($TFSI^-$), unlocking high lithium-ion transference numbers ($t_{Li^+} > 0.68$).
Developing closed-loop solvent recovery loops during mass manufacturing, driving net-zero carbon footprints across the entire material lifecycle while maintaining market-leading cost structures for large-scale carbon capture projects.
Complementary porous materials engineered for gas separation, catalysis, and hydrocarbon recovery.
Everything procurement directors and material scientists need to know before ordering commercial-grade NH2-UiO-66.
Standard UiO-66 uses terephthalic acid ($BDC$) linkers, rendering its internal pores non-polar and hydrophobic. NH2-UiO-66 utilizes 2-aminoterephthalic acid ($BDC-NH_2$), grafting primary amine groups onto the benzene rings. This introduces strong localized dipoles, raises the static heat of $CO_2$ adsorption ($Q_{st}$) from $\sim 25\text{ kJ/mol}$ to $> 38\text{ kJ/mol}$, shifts light absorption into the visible spectrum for photocatalysis, and provides reactive sites for post-synthetic organic modification.
Yes. Qualified commercial enterprise projects and university R&D centers can request 1g to 5g free evaluation samples. Freight cost is covered by the recipient. Contact our technical sales desk with your application requirements to initiate sample authorization within 24 hours.
NH2-UiO-66 exhibits exceptionally high hydrolytic stability due to the strong $Zr-O$ coordination bonds within its $[Zr_6O_4(OH)_4]^{12+}$ nodes. It retains full crystallinity and porous surface area after 24 hours of boiling water immersion or exposure to acidic gases ($SO_2, NO_x$) within pH 1 to 10.5. However, prolonged exposure to strong basic solutions ($\text{pH} > 11$) should be avoided.
Beyond native micro-crystalline powders, KARGEN supplies custom engineered forms including: (1) Binder-free spherical micro-granules (200-500 microns), (2) Extruded cylindrical pellets (1.5mm - 3.0mm diameter), (3) Slurry dispersions in ethanol/water/DMF, and (4) Structured 3D-printed ceramic honeycomb monolith coatings.
KARGEN operates China's premier ton-scale MOF manufacturing base in Zhuhai, with an annual capacity exceeding 50 metric tons. Standard powder lots ($< 10\text{ kg}$) ship within 3-5 business days. Bulk contract orders ($100\text{ kg} - 5\text{ tons}$) feature guaranteed production and delivery schedules within 2 to 4 weeks, backed by ISO 9001 quality documentation.
Absolutely. Our PhD-led R&D team regularly performs custom link functionalizations, including $UiO-66-(COOH)_2$, $UiO-66-NO_2$, $UiO-66-Br_2$, mixed-linker MOFs, and metal-doped variants ($Zr/Ti$, $Zr/Hf$). All intellectual property developed under custom synthesis contracts belongs entirely to the client.