Novel alkali earth metal-organic frameworks with very high thermal stability

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PURPOSE : An alkali earth metal-organic framework compound with excellent thermal stability is provided to be applied to adsorption and recycling of radioactive metal or toxic metal. CONSTITUTION : An alkali earth metal-organic framework compound has thermal stability at 500-600 Deg. C. The alkali earth metal-organic framework contains a structural unit of chemical formula 1(AE(NC_5H_3(CO_2)_2)). In chemical formula 1, AE is Ba or Sr. A method for preparing the compound comprises a step of mixing alkali earth metal precursor, organic linker, organic solvent, and water. The organic linker contains 2, 6-pyridine dicarbocylic acid, 2, 3-pyridine dicarboxylic acid, or 2, 5-pyridine dicarboxylic acid. COPYRIGHT KIPO 2012