Description

Key Properties & Advantages
Er-MOF (KAR-F14)??s performance stems from its erbium-based structure and synergy between MOF and rare-earth characteristics:

Erbium-Driven Electronic Properties: Erbium??s unique 4f electronic configuration endows the material with exceptional near-infrared (NIR) luminescence (emission typically in 1500?C1600 nm range) and strong Lewis acidity??properties rarely combined in traditional MOFs.
High Surface Area & Tunable Porosity: Retains the hallmark MOF advantages of large BET surface area (typically 500?C900 m2/g) and adjustable pore size (0.8?C2.0 nm), enabling efficient molecular adsorption, catalytic site accessibility, and guest-host interactions.
Rare-Earth Photophysical Traits: Erbium??s NIR luminescence is less susceptible to autofluorescence and tissue scattering, making it valuable for bioimaging and optical sensing applications. Its long luminescence lifetime (??s-ms scale) enhances signal-to-noise ratios in detection.
Lewis Acid Catalytic Activity: Erbium nodes act as robust Lewis acid sites, promoting reactivity in asymmetric catalysis (e.g., enantioselective synthesis) and organic transformations (e.g., cycloadditions, esterifications).
Superior Crystallinity & Consistency: Precise synthesis controls ensure high crystallinity, which stabilizes luminescent properties and catalytic activity. Strict quality checks guarantee minimal batch variation in particle size, porosity, and erbium loading.
Applications
Near-Infrared Luminescence
Bioimaging & Sensing: Erbium??s NIR emission (1530?C1550 nm) penetrates deeply into biological tissues with minimal interference, enabling non-invasive in vivo imaging. It also serves as a luminescent probe for biomolecule detection (e.g., proteins, nucleic acids) via guest-induced luminescence quenching/enhancement.
Optical Devices: Potential use in NIR lasers, amplifiers, and optical communication components, leveraging its stable luminescent output under excitation.
Asymmetric Catalysis
Enantioselective Synthesis: Erbium??s Lewis acidity, combined with the MOF??s chiral framework (when using chiral ligands), promotes asymmetric reactions such as Diels-Alder cycloadditions and hydrogenations, achieving high enantiomeric excess (ee) values.
Organic Transformation Catalysis: Efficiently catalyzes acid-mediated reactions (e.g., alcohol dehydration, acetalization) with high turnover numbers, thanks to the MOF??s porous structure that stabilizes active sites and facilitates substrate diffusion.
Environmental Pollutant Detection
Selective Sensing: The porous framework adsorbs target pollutants (e.g., heavy metal ions, volatile organic compounds), while erbium??s luminescence is selectively quenched or shifted upon binding??enabling sensitive, real-time detection with low detection limits.
Selective Gas Adsorption
Rare Gas Separation: Erbium??s polarizability enables selective adsorption of noble gases (e.g., Xe, Kr) from gas mixtures, useful for nuclear waste treatment or rare gas purification.
Small Molecule Capture: Tunable porosity and erbium-guest interactions enhance selectivity for gases like CO? and H?, supporting carbon capture and hydrogen storage applications.
Technical Specifications
Metal Node: Erbium (Er3?)
Ligand System: Typically carboxylate-based (e.g., terephthalate derivatives) or ??-diketonate ligands (tailored for luminescence/catalysis)
Appearance: Pale pink to off-white crystalline powder
Crystallinity: High (confirmed by XRD with sharp diffraction peaks)
BET Surface Area: 500?C900 m2/g
Pore Size: 0.8?C2.0 nm (tunable via ligand selection)
Luminescence Range: 1500?C1600 nm (NIR) under 980 nm excitation
Purity: ??95% (research grade, with trace metal impurities <0.1%) Quality Assurance Each batch of Er-MOF (KAR-F14) undergoes rigorous characterization: X-ray diffraction (XRD) to verify crystallinity and phase purity. N? adsorption-desorption analysis to confirm surface area and pore size distribution. Photoluminescence spectroscopy (PL) to validate NIR emission intensity and lifetime. Inductively coupled plasma mass spectrometry (ICP-MS) to quantify erbium loading and impurity levels. A certificate of analysis (CoA) is provided with each order, ensuring compliance with performance standards. Packaging & Storage Available in 1g, 5g, and 10g quantities, packaged in airtight, light-resistant containers to protect luminescent properties. Store at room temperature in a dry, inert atmosphere (e.g., argon) to prevent moisture-induced degradation. Shelf life is ??6 months under proper storage conditions. Why Choose Er-MOF (KAR-F14)? Er-MOF (KAR-F14) stands out as a rare-earth MOF that bridges luminescence and catalysis, leveraging erbium??s unique properties within a porous, tunable framework. Its superior crystallinity and batch consistency make it a reliable tool for advanced research in photonics, asymmetric synthesis, and environmental sensing??while scaling seamlessly to industrial applications. Contact our technical team for customization (e.g., ligand modification for targeted properties), bulk pricing, or application-specific data. For research and industrial use only. Not intended for medical or diagnostic applications.