Issue 6, 2002

Abstract

Continuous iron oxide gel fibers were prepared by the sol–gel method using ferric alkoxide and acetic acid as starting materials and alcohol as solvent, and continuous hollow α-Fe2O3 fibers produced after the gel fibers were heat treated at 400 °C for 1 h. The outer diameter of the α-Fe2O3 fibers is between 4–10 µm and the wall thickness is 1–2 µm, in which the α-Fe2O3 particle size is about 100 nm. 2-Methoxyethanol and acetic acid played important roles in the formation of the spinnable sol and the possible mechanism for the formation of the hollow α-Fe2O3 fibers was discussed in detail. The hollow α-Fe fibers could be obtained by reducing the as-prepared α-Fe2O3 fibers under hydrogen flow and the α-Fe particle size increased to ∼150 nm.

Graphical abstract: Continuous hollow α-Fe2O3 and α-Fe fibers prepared by the sol–gel method

Article information

Article type
Paper
Submitted
04 Feb 2002
Accepted
08 Apr 2002
First published
26 Apr 2002

J. Mater. Chem., 2002,12, 1844-1847

Continuous hollow α-Fe2O3 and α-Fe fibers prepared by the sol–gel method

C. Gong, D. Chen, X. Jiao and Q. Wang, J. Mater. Chem., 2002, 12, 1844 DOI: 10.1039/B201243J

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