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Chemical Synthesis of Porous Barium Titanate Thin Film and Thermal Stabilization of Ferroelectric Phase by Porosity-Induced Strain
Published on: March 27, 2018
11.1K
Construction and characterization of nano-oval BaTi
Ali B Abou Hammad1, Hend S Magar2, A M Mansour1
1Solid State Physics Department, Physics Research Division, National Research Centre, 33 El Bohouth St., Dokki, Giza, 12622, Egypt.
Scientific Reports
|June 3, 2023
Summary
Synthesized barium titanate-iron@nickel ferrite (BFT@NFO) nanocomposites show enhanced thermal, dielectric, and electrochemical properties. This development is significant for creating ultrasensitive electrochemical nano-systems for hydrogen peroxide detection.
Area of Science:
- Materials Science
- Nanotechnology
- Electrochemistry
Background:
- Ferrite/ferroelectric nanocomposites offer unique properties for various applications.
- Controlling nanoparticle morphology and shielding is crucial for optimizing material performance.
Purpose of the Study:
- To synthesize and characterize oval-shaped barium titanate-iron@nickel ferrite (BFT@NFO) nanocomposites.
- To investigate the effects of nickel ferrite (NFO) shielding on barium titanate-iron (BTF) nano-perovskite properties.
- To evaluate the potential of BFT@NFO as an ultrasensitive electrochemical sensor for hydrogen peroxide detection.
Main Methods:
- Chemical synthesis via controlled sol-gel processes and calcination at 600°C.
- Microstructural analysis using X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Scanning Electron Microscopy (SEM).
- Thermal analysis (thermogravimetric analysis), optical analysis, magnetic studies, and electrochemical sensor construction.
Main Results:
- Successful synthesis of oval-shaped BFT@NFO nanocomposites with a hexagonal BaTi2Fe4O11 phase.
- NFO shielding significantly improved thermal stability and relative permittivity while lowering the Curie temperature of BTF.
- The BFT@NFO nanocomposites exhibited excellent electrochemical properties, attributed to dual active components and nano-oval structure, enabling ultrasensitive hydrogen peroxide detection.
Conclusions:
- Shielding barium titanate-iron (BTF) with nickel ferrite (NFO) nanoparticles synchronously enhances thermal, dielectric, and electrochemical properties.
- The synthesized BFT@NFO nanocomposites are promising for developing advanced electrochemical nano-systems.
- The study highlights the significance of nano-oval BFT@NFO for ultrasensitive determination of hydrogen peroxide.
