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Title: Synthesis and characterization of mesoporous MgO by template-free hydrothermal method

Highlights: • A simple synthesis of porous MgO with diameter size from 3 to 10 μm without any templates. • Effect of temperature and time were investigated. • Systematic characterization by TG/DTA, XRD, SEM, TEM, and nitrogen adsorption–desorption isotherm of MgO. • A possible formation and crystal growth mechanism of mesopores MgO is proposed. - Abstract: Mesoporous MgO particles have been synthesized through a novel template-free hydrothermal co-precipitation method using a Mg(NO{sub 3}){sub 2} solution as the magnesium source and NaCO{sub 3} as precipitant. The samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N{sub 2} adsorption–desorption analysis. The results indicate that the MgO samples have a disordered mesoporous structure, a large BET surface area, and a large pore volume. The effect of reaction temperature on the MgO product BET surface area was studied. A possible formation and crystal growth mechanism for mesoporous MgO is proposed.
Authors:
 [1] ;  [2] ;  [1] ;  [1] ;  [3]
  1. State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, 1 Zhongguancun Road, Haidian District 100190, Beijing (China)
  2. (China)
  3. Department of Physics and Astronomy, Bowling Green State University, Bowling Green 43403, OH (United States)
Publication Date:
OSTI Identifier:
22345242
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 50; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ADSORPTION; COPRECIPITATION; CRYSTAL GROWTH; DESORPTION; DIFFERENTIAL THERMAL ANALYSIS; HYDROTHERMAL SYNTHESIS; ISOTHERMS; MAGNESIUM; MAGNESIUM NITRATES; MAGNESIUM OXIDES; NANOSTRUCTURES; NITROGEN; PARTICLES; SCANNING ELECTRON MICROSCOPY; SOLUTIONS; SURFACE AREA; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION