Lanthanum cerium chloride binds La3+stable coordination capacity and Ce3+/Ce4+Redox activity, showing synergistic effects in the fields of catalysis, luminescent materials and rare earth separation, is the preferred precursor of low-cost and high-performance rare earth functional materials.
Chemical Properties:
- Solubility: soluble in water (solubility at 25°C> 100 g/100mL); Soluble in methanol, ethanol and other polar solvents; Insoluble in non-polar solvents
- Redox: Ce3+The components can be oxidized to Ce4+
- Hydrolysis: Aqueous solution pH≈3-5 (varies with La/Ce ratio)
Applications:
Catalytic field
- Petroleum cracking: FCC catalyst modified components (5-8% improved light oil yield)
- Automobile exhaust purification: three-way catalyst oxygen storage material (OSC>300 μmol/g)
- Organic synthesis: Friedel-Crafts reaction catalyst (selectivity>90%)
Functional materials
- LED phosphor: prepare LaxCe1-xPO4:Tb3+Green phosphor
- UV absorbing material: Sunscreen cosmetic additive (UVB zone absorption rate >95%)
- Ceramic electrolytes: doped materials for solid oxide fuel cells
Rare earth smelting
- Metal preparation: raw material for the production of lanthanum-cerium alloy by molten salt electrolysis
- Polishing material: CMP polishing slurry active ingredient (for glass precision polishing)
