Gadolinium Oxide (Gd2O3) Nanoparticles - Properties, Applications

Topics Covered

Introduction
Chemical Properties
Physical Properties
Thermal Properties
Manufacturing Process
Applications

Introduction

The prospects for using nanomaterials with diameters of <100 nm in number of applications is being widely researched around the world today across multiple domains such as pharmaceutical drug manufacture, biology, physics, chemistry, cosmetics, optical components, polymer science, mechanical engineering, and toxicology.

This article discusses the properties and applications of gadolinium oxide nanoparticles. Gadolinium is a Block F, Period 6 element, while oxygen is a Block P, Period 2 element. Gadolinium is obtained from the minerals monazite and bastnasite. Gadolinium oxide is an inorganic compound. Gadolinium oxide nanoparticles appear in white powder form. They can cause eye irritations.

Chemical Properties

The chemical properties of gadolinium oxide nanoparticles are outlined in the following table.

Chemical Data
Chemical symbol Gd2O3
CAS No. 12064-62-9
Group Gadolinium 3
Oxygen 16
Electronic configuration Gadolinium [Xe] 4f7 5d1 6s2
Oxygen [He] 2s2 2p4
Chemical Composition
Element Content (%)
Gadolinium 86.75
Oxygen 13.23

Physical Properties

The physical properties of gadolinium oxide nanoparticles are given in the following table.

Properties Metric Imperial
Density 7.10 g/cm3 0.257 lb/in3
Molar mass 362.5 g/mol -

Thermal Properties

The thermal properties of gadolinium oxide nanoparticles are provided in the table below.

Properties Metric Imperial
Melting point 2420 °C 4390 °F

Manufacturing Process

Gadolinium oxide nanoparticles can be manufactured using several methods. The commonly used one is the precipitation of the hydroxide via the reaction of gadolinium ions with hydroxide, which is followed by thermal dehydration to the oxide. The nanoparticles are coated with a protective material to prevent the formation of larger polycrystalline aggregates.

Applications

The key applications of gadolinium oxide nanoparticles are as follows:

  • Fluorescent materials, luminescence, and electroluminescent devices
  • Special optical glass and plasma display panels
  • In the electric industry
  • As additives, catalysts, and dopants
  • In cathode-ray tubes, ferroelectric memory, and field emission displays
  • High-resolution x-ray medical imaging
  • Neutron converter
  • Scintillators and sintering aids
  • Solid oxide fuel cell
  • UV detectors.

Source: AZoNano

 

Date Added: Apr 10, 2013 | Updated: Sep 10, 2013
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