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In a typical synthesis of mesoporous zirconium oxophosphate, 30 mL absolute ethanol was acidified with 3.30 g (35 wt %) hydrochloric acid. Then 2.0 g triblock copolymer pluronic F127 was added to this acidic ethanol medium and allowed to stir until dissolution. Then 3.84 g (0.01 M) zirconium-
(IV) butoxide (taken in 5 mL ethanol) was added slowly under vigorous stirring and allowed to stir for 30 min. During stirring precipitation should be avoided. Then, to this clear solution 1.16 g of (0.01 M) orthophosphoric acid (88 wt %, taken in 5 mL ethanol) was slowly dropwise added under vigorous stirring at ambient temperature. Then the reaction mixture was covered and allowed to stir overnight at room temperature. The mixture
was placed inside the oven at 343 K to undergo the EISA process. Finally, the obtained solid sample was calcined through slow increase of the temperature to 773 K (1 K min1 ramping rate) followed by heating at 773 K for 5 h in the presence of air to obtain template-free mesoporous zirconium oxophosphate.
(ACS Catal. 2011, 1, 493¨C501)

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