MgSO4·5Mg(OH)2·3H2O的水热合成及反应时间对其形貌的影响(英文)

被引:13
作者
朱黎霞
岳涛
高世杨
夏树屏
机构
[1] 中国科学院青海盐湖研究所西安二部
[2] 兰州大学化学系
[3] 中国科学院青海盐湖研究所西安二部 西安
[4] 兰州
[5] 西安
[6] 陕西师范大学应用化学研究所
关键词
水热合成; 硫氧镁; 形貌;
D O I
暂无
中图分类号
O614 [金属元素及其化合物];
学科分类号
070301 ; 081704 ;
摘要
Both whisker and nanometer MgSO4·5Mg(OH)2·3H2O(MOS) were prepared by hydrothermal method at 140℃for different times, using NaOH and MgSO4·7H2O as raw materials. The MgSO4·5Mg(OH)2·3H2O part icles were characterized by powder X ray diffraction(XRD),thermal analysis(TGA DSC), infrared spectroscopy(FT IR),transmission electron microscopy(SEM) and scanning electron microscopy(TEM). The size distribution in whisker like and nanocrystalline materials arein the range of 10~50μm and 10~20nm respectively. The whisker MOS is metastable phase in MgSO4 NaOH H2O system at 140℃,whereas nanometer MOS is stable phase.
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页码:99 / 102
页数:4
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