<abstract xmlns="http://www.w3.org/1999/xhtml"> Pure phase NiTiO3 was obtained via a modified sol-gel method. Addition of CeO2 in a modified oxidizing atmosphere in stearic acid at 750 °C led to the growth of several nanoscaled Ce-rich phases. The formation of NiTiO3 and CeO2/NiTiO3 was strongly confirmed based on metal-oxygen and metal-metal absorption bands. The nanometric formation of crystals and narrow distribution of nanoparticles were confirmed by XRD and FE-SEM. The magnetic properties indicated weak ferromagnetic behavior of NiTiO3 and paramagnetic behavior of CeO2/NiTiO3 nanocomposites. The paramagnetic properties were improved gradually into superparamagnetic upon increasing CeO2 domain to 30 mol%. It was observed that the current density can achieve 1 × 10-9 A/cm2 for the sample containing 30 mol% CeO2 at an electrical field equal to 40 V/cm. </abstract>

Pure phase NiTiO3 was obtained via a modified sol-gel method. Addition of CeO2 in a modified oxidizing atmosphere in stearic acid at 750 °C led to the growth of several nanoscaled Ce-rich phases. The formation of NiTiO3 and CeO2/NiTiO3 was strongly confirmed based on metal-oxygen and metal-metal absorption bands. The nanometric formation of crystals and narrow distribution of nanoparticles were confirmed by XRD and FE-SEM. The magnetic properties indicated weak ferromagnetic behavior of NiTiO3 and paramagnetic behavior of CeO2/NiTiO3 nanocomposites. The paramagnetic properties were improved gradually into superparamagnetic upon increasing CeO2 domain to 30 mol%. It was observed that the current density can achieve 1 × 10-9 A/cm2 for the sample containing 30 mol% CeO2 at an electrical field equal to 40 V/cm.

CeO2/NiTiO3 nanocomposites; synthesis, photoluminescence and magnetic behavior

Materials Science-Poland

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CeO/NiTiO nanocomposites; synthesis, photoluminescence and magnetic behavior

Pure phase NiTiO3 was obtained via a modified sol-gel method. Addition of CeO2 in a modified oxidizing atmosphere in stearic acid at 750 °C led to the growth...

CeO₂/NiTiO₃ nanocomposites; synthesis, photoluminescence and magnetic behavior

Publicado en línea: 26 jul 2017

Páginas: 275 - 282

Recibido: 22 may 2016

Aceptado: 07 may 2017

DOI: https://doi.org/10.1515/msp-2017-0060

Palabras clave
NiTiO3, sol-gel, magnetic behavior, nanocomposite

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

CeO2/NiTiO3 nanocomposites; synthesis, photoluminescence and magnetic behavior

Publicado en línea: 26 jul 2017

Páginas: 275 - 282

Recibido: 22 may 2016

Aceptado: 07 may 2017

DOI: https://doi.org/10.1515/msp-2017-0060

Palabras claveNiTiO3, sol-gel, magnetic behavior, nanocomposite

© 2017

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

CeO₂/NiTiO₃ nanocomposites; synthesis, photoluminescence and magnetic behavior

Palabras clave
NiTiO3, sol-gel, magnetic behavior, nanocomposite