ChemInform Abstract: A Microbial‐Mineralization Approach for Syntheses of Iron Oxides with a High Specific Surface Area.

Abstract

-Fe2O3 and -Fe2O3 with BET surface areas of 253 and 148 m 2 /g, resp., are synthesized by thermal treatment of -FeOOH or -FeOOH precursors at 400 C for 2-3 min. The precursors are prepared by a microbial-mineralization-inspired approach from aqueous solutions containing Fe 2+ and EDTA at 25 C for 1 d. Changes in EDTA concentration, pH, and temperature control the formation of the crystalline phases. The obtained iron oxides may be applicable as electrode material for Li-ion batteries, adsorbents, and catalysts. -(YAGITA, N.; OAKI, Y.; IMAI*, H.; Chem. -Eur. J. 19 (2013) 14, 4419-4422, http://dx.