Non-equilibrium defect chemistry in oxygen-rich zinc oxide nano-tetrapods synthesized using atmospheric pressure microplasma

Padmanaban, Dilli babu; Maguire, Paul; Mariotti, Davide

doi:10.1039/d3ta06821h

J. Mater. Chem. A

2024

DOI: 10.1039/d3ta06821h

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Non-equilibrium defect chemistry in oxygen-rich zinc oxide nano-tetrapods synthesized using atmospheric pressure microplasma

Dilli babu Padmanaban,

Paul Maguire,

Davide Mariotti

Abstract: We demonstrate the synthesis of zinc oxide (ZnO) nanoscale tetrapods (nTPs) using an atmospheric pressure microplasma with a metal wire as a sacrificial electrode.

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Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles

Tarasenka,

Padmanaban,

Karpinsky

et al. 2024

Small Methods

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Orthorhombic perovskite GdFeO3 nanostructures are promising materials with multiferroic properties. In this study, a new low‐temperature plasma‐assisted approach is developed via dual anodic dissolution of solid metallic precursors for the preparation of perovskite GdFeO3 nanoparticles (NPs) that can be collected both as colloids as well as deposited as a thin film on a substrate. Two solid metallic foils of Gd and Fe are used as precursors, adding to the simplicity and sustainability of the method. The formation of the orthorhombic perovskite GdFeO3 phase is supported by high‐resolution transmission electron microscopy, X‐ray diffraction, X‐ray photoelectron spectroscopy, and Raman measurements, while a uniform elemental distribution of Gd, Fe, and O is confirmed by energy dispersive X‐ray spectroscopy, proving the successful preparation of ternary compound NPs. The magnetic properties of the NPs show zero remnant magnetization typical of antiferromagnetic materials, and saturation at high fields that can be caused by spin interaction between Gd and Fe magnetic sublattices. The formation mechanism of ternary compound NPs in this novel plasma‐assisted method is also discussed. This method is also modified to demonstrate the direct one‐step deposition of thin films, opening up opportunities for their future applications in the fabrication of magnetic memory devices and gas sensors.

show abstract

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles

Tarasenka,

Padmanaban,

Karpinsky

et al. 2024

Small Methods

View full text Add to dashboard Cite

show abstract

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Non-equilibrium defect chemistry in oxygen-rich zinc oxide nano-tetrapods synthesized using atmospheric pressure microplasma

Abstract: We demonstrate the synthesis of zinc oxide (ZnO) nanoscale tetrapods (nTPs) using an atmospheric pressure microplasma with a metal wire as a sacrificial electrode.

Cited by 1 publication

References 157 publications

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles

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Non-equilibrium defect chemistry in oxygen-rich zinc oxide nano-tetrapods synthesized using atmospheric pressure microplasma

Abstract: We demonstrate the synthesis of zinc oxide (ZnO) nanoscale tetrapods (nTPs) using an atmospheric pressure microplasma with a metal wire as a sacrificial electrode.

Cited by 1 publication

References 157 publications

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO3 Perovskite Nanoparticles

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO3 Perovskite Nanoparticles

Contact Info

Product

Resources

About

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles

Low Temperature Plasma‐Assisted Double Anodic Dissolution: A New Approach for the Synthesis of GdFeO₃ Perovskite Nanoparticles