Synthesis and characterization of monolithic Gd2O3 aerogels

H. D. Zhang, B. Li, Q. X. Zheng, M. H. Jiang, X. T. Tao

Research output: Contribution to journalArticlepeer-review

Abstract

In this thesis, we will elaborate on the synthesis and characterization of monolithic Gd2O3 aerogel. We conducted the experiment in the following procedure. Use gadolinium nitrate or gadolinium chloride, a kind of inorganic gadolinium salt as raw material, and polymerize it in ethanol with propylene oxide as gelation initiator in the way of sol-gel. After this step, we can obtain the wet gel. Then, dry the wet gel by supercritical CO2, at last we will get aerogel. The product has strong transparency and also shows some thermal stability. XRD characterization shows that it is amorphous. Nitrogen adsorption/desorption analysis tells clearly its surface area (223 m2/g), average pore diameters (42 nm) and large pore volume (1.83 ml/g). It is also characterized by transmission electron microscopy and high-resolution transmission electron microscopy.

Original languageEnglish
Pages (from-to)4089-4093
Number of pages5
JournalJournal of Non-Crystalline Solids
Volume354
Issue number34
DOIs
Publication statusPublished - 2008 Sep 15
Externally publishedYes

Keywords

  • Amorphous metals, metallic glasses
  • Amorphous semiconductors
  • Chemical properties
  • Crystals
  • Devices
  • Electrical and electronic properties
  • Measurement techniques
  • Nanoparticles, colloids and quantum structures
  • Optical properties
  • Rare-earths in glasses
  • Sol-gel, aerogel and solution chemistry
  • Structure
  • Superconductors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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