Key Properties & Advantages

• Erbium-Driven Electronic Properties: Erbium’s unique 4f electronic configuration endows the material with exceptional near-infrared (NIR) luminescence (emission typically in 1500–1600 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 500–900 m²/g) and adjustable pore size (0.8–2.0 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 (μs-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 (1530–1550 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 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 CO₂ and H₂, supporting carbon capture and hydrogen storage applications.

Technical Specifications

Quality Assurance

• X-ray diffraction (XRD) to verify crystallinity and phase purity.
• N₂ 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.

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)?