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Stable Aqueous Suspensions of Manganese Ferrite Clusters with Tunable Nanoscale Dimension and Composition
Published on: February 5, 2022
Stability of the infinite layer structure with iron square planar coordination
Cédric Tassel1, Takashi Watanabe, Yoshihiro Tsujimoto
1Department of Chemistry, Graduate School of Science, Kyoto University, Sakyo, Kyoto 606-8502, Japan.
Journal of the American Chemical Society
|March 5, 2008
Summary
A new "infinite layer" SrFeO2 material with unique square-planar coordination was discovered. This robust structure is thermally stable and chemically tunable for potential high-temperature applications.
Area of Science:
- Materials Science
- Solid-State Chemistry
- Inorganic Chemistry
Background:
- The discovery of novel materials with unique structural motifs is crucial for advancing technological applications.
- The
- infinite layer
- (IL) structure is a compelling motif in materials science.
Purpose of the Study:
- To synthesize and characterize SrFeO2 with the
- infinite layer
- (IL) structure.
- To investigate the solubility and thermal stability of the IL SrFeO2.
- To explore the potential for chemical tuning and high-temperature applications.
Main Methods:
- Soft chemical synthesis route.
- Preparation of SrFeO2 from a SrFeO3 precursor.
- Characterization of structural properties, solubility, and thermal stability.
Main Results:
- Successful synthesis of SrFeO2 with the IL structure and unprecedented FeO4 square-planar coordination.
- Demonstrated significant solubility of the IL structure, yielding Sr1-xCaxFeO2 (0 ≤ x ≤ 1).
- Confirmed thermal stability of SrFeO2 up to at least 1000 K.
Conclusions:
- The IL structure of SrFeO2 is surprisingly robust due to the covalent Fe-O bond.
- The discovered material offers a platform for chemical tuning of properties.
- Potential for high-temperature applications is indicated.
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