TG/DSC analysis of Fe8(OOH)16Cl1.3 nanospindles

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Abstract

The thermal analysis of Fe8(OOH)16Cl1.3 (Akaganeite-M) nanospindles prepared by the hydrolysis of FeCl3 solutions are determined by thermogravimetric analyses and differential scanning calorimetry (TG/DSC), in conjunction with field-emission scanning electron microscopy (FE-SEM), and X-ray diffraction (XRD). Different products are formed after Fe8(OOH)16Cl1.3 nanospindles are calcined at different temperatures for 30 min in N2 atmosphere: Fe1.833(OH)0.5O2.5 and magnetite obtained at 250 °C; pure magnetite (Fe3O4) obtained at 630 °C; and magnetite containing some iron nitrides (Fe2N and Fe4N) obtained at 800 °C. The calcination of Fe8(OOH)16Cl1.3 provides a new method to prepare pure magnetite. © 2007 Elsevier Ltd. All rights reserved.

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Hu, Y., Shan, Y., & Chen, K. (2008). TG/DSC analysis of Fe8(OOH)16Cl1.3 nanospindles. Materials Research Bulletin, 43(10), 2703–2708. https://doi.org/10.1016/j.materresbull.2007.10.043

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