1. bookVolume 35 (2017): Issue 2 (July 2017)
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
access type Open Access

CeO2/NiTiO3 nanocomposites; synthesis, photoluminescence and magnetic behavior

Published Online: 26 Jul 2017
Volume & Issue: Volume 35 (2017) - Issue 2 (July 2017)
Page range: 275 - 282
Received: 22 May 2016
Accepted: 07 May 2017
Journal Details
License
Format
Journal
eISSN
2083-134X
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
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.

Keywords

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