Veldurthi, Shashikala Shin, Chae-Ho Joo, Oh-Shim Jung, Kwang-Deog 2024-01-20T15:02:34Z 2024-01-20T15:02:34Z 2021-09-05 2012-04-01 1387-1811 https://pubs.kist.re.kr/handle/201004/129345 Single crystals of MgO were synthesized using a simple precipitation method with no templates. The magnesium hydroxide was synthesized at 25 degrees C or 100 degrees C by the precipitation of magnesium nitrate solution, aged at room temperature or 100 degrees C. Precipitation temperature had a great influence on the morphology in the synthesis of magnesium oxide. The N-2 physisorption, XRD and electron microscopic (SEM/TEM, HRTEM) analysis associated with the electron diffraction reveal the different morphological structures and pores of MgO synthesized with different synthesis methods. Precipitation at 25 degrees C generated macroporous MgO with plate-like crystals. However, the change of precipitation temperature to 100 degrees C generated mesoporous single crystalline MgO, and the stabilization and growth of MgO(111) planes (with d-spacing of 0.244 nm) was observed. The formation of mesopores and single crystallinity of MgO synthesized by the precipitation at 100 degrees C were retained even after calcination at a temperature of 800 degrees C for 5 h. (C) 2011 Elsevier Inc. All rights reserved. English ELSEVIER MAGNESIUM-OXIDE NUCLEATION GROWTH Synthesis of mesoporous MgO single crystals without templates Article 10.1016/j.micromeso.2011.11.044 1 MICROPOROUS AND MESOPOROUS MATERIALS, v.152, pp.31 - 36 MICROPOROUS AND MESOPOROUS MATERIALS 152 31 36 scie scopus 000300269000005 2-s2.0-84455179000 Chemistry, Applied Chemistry, Physical Nanoscience & Nanotechnology Materials Science, Multidisciplinary Chemistry Science & Technology - Other Topics Materials Science Article MAGNESIUM-OXIDE NUCLEATION GROWTH Precipitation MgO single crystals Mesopores