Morphology-Phase Coevolution Driven by Oxygen Chemical Potential in Fe 3 O 4 /α-Fe 2 O 3 Nanosheets

Key Points

• The research aims to investigate the interdependence of morphology and phase in iron oxide nanosheets, specifically how oxygen chemical potential influences these properties.
• Utilized two-dimensional non-van der Waals iron oxide nanosheets in the analysis.
• Examined the coupling relationship between morphology and phase via controlled oxygen potential conditions.
• Conducted experiments to characterize structural changes in nanosheets under varying oxygen environments.
• Identified a direct correlation between oxygen chemical potential and changes in morphology and phase of the iron oxide nanosheets.
• Demonstrated that variations in oxygen exposure lead to distinct morphological features and phase compositions.
• Found that the evolution of these properties is critical for optimizing material applications.