Citation: WU Zhi-Cheng, LIU Ming-Hui, WANG Yong-Jing, LIN Zhang. Study of In Situ Formation of Magnesium Hydroxide Whisker via Basic Magnesium Chloride Whisker Regulated by Organic Parcels at Low Temperature[J]. Chinese Journal of Structural Chemistry, ;2014, 33(6): 881-887. shu

Study of In Situ Formation of Magnesium Hydroxide Whisker via Basic Magnesium Chloride Whisker Regulated by Organic Parcels at Low Temperature

1.
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Corresponding author: WANG Yong-Jing,
Received Date: 22 November 2013
Available Online: 29 April 2014
Fund Project: Supported by the National Basic Research Program of China (2010CB933501, 2013CB934302) (2010CB933501, 2013CB934302) the National Science Foundation Grant (21273237, 21103191) (21125730) the Knowledge Innovation Program of the Chinese Academy of Sciences (KJCX2-YW-N50, KJCX2-EW-J02) (21273237, 21103191) the Technology Key Project of Fujian Province (2013H0058) (KJCX2-YW-N50, KJCX2-EW-J02) and the Fund of Fujian Key Laboratory of Nanomaterials (2006L2005) (2013H0058)

In this work, we demonstrate an in situ phase conversion from basic magnesium chloride (BMC) into magnesium hydroxide whisker by using polar organic solvent at low temperature. The morphology and phase composition of magnesium hydroxide whiskers prepared at different reaction temperature, alkali concentration and organic solvent were analyzed by X-ray diffraction (XRD) and scanning electronic microscope (SEM). It was found that when one of the organic solvents such as absolute ethyl alcohol, butanol, polyethylene glycol (PEG-400), acetone, et al. was selected as the template, the precursor BMC can transform into whisker-like magnesium hydroxide through precipitate transformation in low temperature and non-hydrothermal system. It can be reasonably explained that the regulation of Mg²⁺ solubility by those organic solvents and the sustained release of Mg²⁺ dissolution by organic adsorption played a significant role in the formation of magnesium hydroxide whisker via BMC whisker as the precursor.
- magnesium hydroxide,
- basic magnesium chloride (BMC),
- whisker
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