Synthesis and Structural Characterization of Single-Phase BiFeO3 Powders from a Polymeric Precursor
The present investigation reports on a simple technique for the preparation of single‐phase BiFeO3 powders using the polymerized complex method, starting from iron and bismuth nitrates. A mixed aqueous solution with citric acid, ethylene glycol, Bi, and Fe ions was polymerized. The formation mechani...
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Published in | Journal of the American Ceramic Society Vol. 90; no. 9; pp. 2723 - 2727 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
Malden, USA
Blackwell Publishing Inc
01.09.2007
Blackwell |
Subjects | |
Online Access | Get full text |
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Summary: | The present investigation reports on a simple technique for the preparation of single‐phase BiFeO3 powders using the polymerized complex method, starting from iron and bismuth nitrates. A mixed aqueous solution with citric acid, ethylene glycol, Bi, and Fe ions was polymerized. The formation mechanism, the homogeneity, and the structure of the obtained powders have been investigated by thermogravimetry, X‐ray diffraction (XRD), Raman spectroscopy, and scanning and transmission electron microscopy measurements. XRD results demonstrated that thermally induced crystallization of rhombohedral BiFeO3 from the Bi–Fe polymeric precursor occurred at temperatures as low as 400°C. Pure single‐phase BiFeO3 nanocrystallites without any impurity or amorphous phases were obtained when the precursor was treated at 600°C for 3 h. |
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Bibliography: | istex:ABB789772EA9360777B10E2A9F0BCC997C837FFA ark:/67375/WNG-X9X94X86-S ArticleID:JACE01779 M. Kuwabara—contributing editor ‡ Institute of Physical Chemistry “Ilie Murgulescu,” Romanian Academy, Bucharest, Romania. ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0002-7820 1551-2916 |
DOI: | 10.1111/j.1551-2916.2007.01779.x |