Synthesis and characterization of high dielectric nano zirconium oxide

Babu, Charles R.; Reddy, Naveen; Reddy, K. Suresh Kumar

doi:10.1016/j.ceramint.2015.04.168

Cited by 27 publications

(13 citation statements)

References 13 publications

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“…Since all fuel cells are based on oxides, this cubic zirconia nanomaterial would be beneficial, as it could replace or reduce the use of platinum, while reducing costs and increasing fuel cell efficiency. Its physical properties strongly depend on the phase and crystalline size (Babu, Reddy, & Reddy, 2015). In addition, researchers have introduced various synthesis methods such as microwave irradiation, hydrothermal, solid-state synthesis and sol gel, combined with solvent synthesis (Babu et al, 2015), to increase the crystal sizes and their morphological phases (Babu et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

“…Its physical properties strongly depend on the phase and crystalline size (Babu, Reddy, & Reddy, 2015). In addition, researchers have introduced various synthesis methods such as microwave irradiation, hydrothermal, solid-state synthesis and sol gel, combined with solvent synthesis (Babu et al, 2015), to increase the crystal sizes and their morphological phases (Babu et al, 2015). The high-temperature phase of ZrO 2 could be used as reinforcement for toughening aluminium through phase transformation, phase conversion and microcracking (Xu et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Preparation of a high surface area zirconium oxide for fuel cell application

Sigwadi

Dhlamini

Mokrani

et al. 2019

Int J Mech Mater Eng

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Stable and high surface area zirconium oxide nanoparticles have been synthesised by means of the hydrothermal method. The Brunauer-Emmett-Teller results show that a high surface area of 543 m 2 /g was obtained in the hydrothermal process, having a high porosity in nanometre range. The hydrothermal method was applied at 120°C by using an autoclave with a Teflon liner at an ambient pressure for 48 h. High-resolution scanning electron microscopy shows the different morphologies of zirconia nanoparticles, which could be categorised as one-dimensional and zerodimensional, as they had a high crystallite orientation, which was also confirmed by the X-ray diffraction (XRD). The mixture of two types of cubic phases in one sample was obtained from XRD and confirmed by the zirconia nanostructure, showing the stable phase of fluorite, which has full cubic symmetry (Im-3m), and also an Arkelite zirconia nanostructure, showing the stable phase of fluorite, which has full cubic symmetry (Fm-3m). The XRD results also show the different structure orientations of face-centred cubic and body-centred cubic in one sample.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of a high surface area zirconium oxide for fuel cell application

Sigwadi

Dhlamini

Mokrani

et al. 2019

Int J Mech Mater Eng

View full text Add to dashboard Cite

show abstract

“…On account of space polarization effect, the zirconia nanoparticle shows high dielectric constant at lower frequency region. However, at higher frequency region the polarization effect reduces which raises the decrease in dielectric constant [37]. The room temperature dielectric constant and dielectric loss values were found to be 7.5 and 0.0094 for the as synthesized nanoparticles at 500kHz.…”

Section: Resultsmentioning

confidence: 95%

Hydrothermal Synthesis, Characterization and Dielectric Properties of Zirconia Nanoparticles

Ahmad¹,

Shahazad

Phul

2017

MSEIJ

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Simple hydrothermal method has been used to synthesize zirconia (ZrO 2 ) nanoparticles in alkaline medium. The powder X-ray diffraction technique (PXRD), electron microscopic studies (SEM and TEM) and BET surface area studies were done to characterize the as-synthesized nanoparticles. The crystalline nature and phase analysis of the ZrO 2 nanoparticles was determined by X-ray diffraction studies which revealed that the as-synthesized powder is pure monoclinic zirconia (m-ZrO 2 ). The particle size was estimated by TEM and HRTEM studies, which comes out to be about 25nm. The surface area of as-prepared ZrO 2 nanoparticles was found to be 186m 2 /g with DA pore radius of 11.9Å by using BET surface area studies. The dielectric constant and dielectric loss of the nanoparticles were found to be 7.5 and 0.0094 for as-synthesized nanoparticles at 500 kHz frequency at room temperature.

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“…Hence its widespread use in various types of compensations and as implants within the bone [8]. Population around the world suffer from oral diseases, the causes of which are tooth decay or gum disease, as the teeth are of great importance to the health of the body [9][10][11][12][13][14]. Several different studies have been conducted to manufacture materials that are similar to the colour, shape and nature of the teeth, due to the difficulty of renewing the anatomical structure of the teeth.…”

Section: Introductionmentioning

confidence: 99%

Enhancing Osteoblast Response and Biointegration in vivo: Grown Zirconium Oxide Nanotube Bundles on Zirconium Surgical Screw

Mohammed¹,

Hassan²

2021

Nano BioMed ENG

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In this paper, the surface of zirconium implant was improved by growing zirconium oxide nanotubes using a simple chemical method to increase the surface porosity and thus increase the effectiveness of bone fusion. Histopathological examinations showed the filling of the bone lakes at the implant site with live bone cells and the penetration of Haversian canals into the blood vessels. EDXS profile confirmed the signal characteristic of zirconium and oxygen. EDXS profile is another evidence of pure ZrO 2 nanotubes formation. EDXS presents peaks between 0.525 and 2.044 kV, which indicate the presence of ZrO 2 nanotubes. SEM result showed that homogeneous nanotubes are less in diameter with increasing concentration of glycerine.

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Synthesis and characterization of high dielectric nano zirconium oxide

Cited by 27 publications

References 13 publications

Preparation of a high surface area zirconium oxide for fuel cell application

Preparation of a high surface area zirconium oxide for fuel cell application

Hydrothermal Synthesis, Characterization and Dielectric Properties of Zirconia Nanoparticles

Enhancing Osteoblast Response and Biointegration in vivo: Grown Zirconium Oxide Nanotube Bundles on Zirconium Surgical Screw

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