Preparation of extra fine nano-sized MgO by precipitation and polymer protection method

  • Hai Xia Wang*
  • , Bing Yuan Hu
  • , Lin Sheng Wang
  • , Guang Da Yang
  • , Qiang Li
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

The precursor for nano-sized magnesia was prepared by using Mg(NO 3)2·6H2O as raw material, the hydrolysis product of hexamethylene tetramine as precipitating reagent and water as reaction media, and with the polymer (PEG) and DMF as protection reagents for particles. Nano-sized magnesia was prepared by calcining the precursor at 873 K after being dehydrated by freeze centrifugation and vacuum drying at a constant temperature. The formation process and structure of MgO nanocrystallites were investigated by means of TG-DTA, FTIR, TEM, XRD and BET. The results showed that the crystal belonged to cubic system and the average size was 3.1 nm and the specific surface area was 229 m2·g-1.

Original languageEnglish
Pages (from-to)363-366
Number of pages4
JournalChinese Journal of Inorganic Chemistry
Volume22
Issue number2
StatePublished - Feb 2006

Keywords

  • Hexamethylene tetramine
  • Nano-sized magnesia
  • Polymer protection
  • Precipitation method

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