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Organic hybrid zirconium phosphonate materials (ZrATMP, ZrEDTMPS, ZrDTPMPA, and ZrHEDP) were synthesized through reaction of organic phosphonic acid sodium salt and ZrOCl2 in water, which exhibited high catalytic activity on the conversion of ethyl levulinate (EL) to γ‐valerolactone (GVL) in the presence of isopropanol. The obtained catalysts were characterized by FT‐IR, TGA, XRD, BET, XPS, ICP‐AES,...
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