期刊
MATERIALS LETTERS
卷 158, 期 -, 页码 190-193出版社
ELSEVIER
DOI: 10.1016/j.matlet.2015.05.116
关键词
MgO; Hydrothermal; Thermal analysis; Crystal structure; Porous materials; Microstructure
资金
- DST-SERB Project, Government of India [SR/S3/ME/0035/2012]
- UGC
Porous magnesia (MgO) with grainy rod-like microstructure was synthesized by hydrothermal process at 180 degrees C/5 h in the presence of urea. The as-prepared particles crystallized as Mg-5(CO3)(4)(OH)(2)center dot 5H(2)O which transformed to MgO phase at 600-700 degrees C. The BET surface area, total pore volume and average pore diameter of 600 degrees C-treated sample were found to be 46 m(2) g(-1), 0.34 cm(3) g(-1) and 30.4 nm, respectively. Microstructural analysis indicated grainy rod-like microstructure (aspect ratio 10-30) in which the nanograin-like particles (20-50 nm) were assembled like architectural design. (C) 2015 Elsevier B.V. All rights reserved.
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