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Synthesis of cubic MgO nanostructure by an easy hydrothermal-calcinations method

Badr-Mohammadi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. Cubic MgO micro-particles with approximately 5-10 μm dimensions were synthesized indirectly from magnesium salt solutions through three consecutive steps, namely: wet chemical precipitation, hydrothermal and thermal dissociation. In wet chemical precipitation step Mg(OH)2 uniform lamellar hexagonal nano-structure with about 30 nm in thickness were synthesized from 0.2 M Mg(NO3)2 • 6H2O solution, subsequent hydrothermal processing of synthesized Mg(OH)2 lamellar hexagonal nano-structure in 10, 20, 30, 60, 120 and 180 min produced 5-10 μm MgCO3 micro-cubes which calcinations of these particles leads to production of the same size MgO micro-cubes. Most pure MgCO3 micro-cubes were synthesized after 120 min of hydrothermal processing. STA analysis revealed that the best temperature for calcinations is about 700 °C
  4. Keywords:
  5. Calcinations ; Cubic morphology ; Hydrothermal ; MgO ; Nano structure
  6. Source: Journal of Ceramic Processing Research ; Vol. 15, issue. 2 , 2014 , p. 88-92
  7. URL: http://jcpr.kbs-lab.co.kr/file/JCPR_vol.15_2014/JCPR15-2/_072013-001.pdf