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Method Of Making Iron Powder

Iron oxide Fe 2 O 3 aerogel powders were prepared by solvent exchange method using nbutanol without a supercritical fluid drying.The obtained aerogel powders have a porosity of 94 a BET specific surface area of 421.1 m 2 g and an average pore sie of 7.9 nm. The aerogel powders possessed a BET specific surface area of 51.8 m 2 g even after calcination at 500 C for 2 h despite the

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