An improved mechanochemical approach to synthesize the stunningly uniform particles of layered double hydroxides

LI Shuping; ZHANG Xiaoqing; WEI Shaohua; ZHU Yinyan; ZHOU Jiahong

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An improved mechanochemical approach to synthesize the stunningly uniform particles of layered double hydroxides

LI Shuping *,ZHANG Xiaoqing,WEI Shaohua,ZHU Yinyan,ZHOU Jiahong

Jiangsu Key Laboratory of Biofunctional Material, College of Chemistry and Material Science, Nanjing Normal University

*Correspondence author

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Funding: Doctoral Fund of Ministry of Education of China（No.No.20103207120006)and financial support of Priority Academic Program Development of Jiangsu Higher Education Institution）, National Natural Science Foundation（No.No.21073093）

Opened online:16 March 2012

Accepted by: none

Citation: LI Shuping,ZHANG Xiaoqing,WEI Shaohua.An improved mechanochemical approach to synthesize the stunningly uniform particles of layered double hydroxides[OL]. [16 March 2012] http://en.paper.edu.cn/en_releasepaper/content/4470886

The stunningly uniform particles of Magnesium-Aluminum Layered Double Hydroxides (Mg-Al-LDHs) were synthesized by an improved mechanochemical approach, and this method is engaged in grinding and ageing process. The properties of LDHs including crystallinity, morphology and thermal stability were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscope (SEM) as well as fourier transform infrared spectroscopy (FTIR) and thermogravimetric/differential thermal analyzer (TG-DTA). The particles after ageing are of high quality in terms of morphology, uniformity and crystallinity, and also exhibit higher thermal stability and zeta potentials. Our study showed that ageing process plays an important role in the synthesis of highly crystalline and regular LDHs.

Keywords:Layered Double Hydroxides; Mechanochemical Approach; Stunningly Uniform Particles

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